diff --git a/models/process/src/actions.ts b/models/process/src/actions.ts
index 16dbbe6d1a..38fc53629a 100644
--- a/models/process/src/actions.ts
+++ b/models/process/src/actions.ts
@@ -199,4 +199,32 @@ export function defineMethods (builder: Builder): void {
     },
     process.method.UnlockSection
   )
+
+  builder.createDoc(
+    process.class.Method,
+    core.space.Model,
+    {
+      label: process.string.LockField,
+      objectClass: card.class.Card,
+      editor: process.component.LockFieldEditor,
+      presenter: process.component.LockFieldPresenter,
+      requiredParams: ['value'],
+      createdContext: null
+    },
+    process.method.LockField
+  )
+
+  builder.createDoc(
+    process.class.Method,
+    core.space.Model,
+    {
+      label: process.string.UnlockField,
+      objectClass: card.class.Card,
+      editor: process.component.LockFieldEditor,
+      presenter: process.component.UnLockFieldPresenter,
+      requiredParams: ['value'],
+      createdContext: null
+    },
+    process.method.UnlockField
+  )
 }
diff --git a/models/server-process/src/index.ts b/models/server-process/src/index.ts
index e893385ebd..d85d2f234d 100644
--- a/models/server-process/src/index.ts
+++ b/models/server-process/src/index.ts
@@ -155,6 +155,14 @@ export function createModel (builder: Builder): void {
     func: serverProcess.func.UnlockSection
   })
 
+  builder.mixin(process.method.LockField, process.class.Method, serverProcess.mixin.MethodImpl, {
+    func: serverProcess.func.LockField
+  })
+
+  builder.mixin(process.method.UnlockField, process.class.Method, serverProcess.mixin.MethodImpl, {
+    func: serverProcess.func.UnlockField
+  })
+
   builder.mixin(process.function.FirstValue, process.class.ProcessFunction, serverProcess.mixin.FuncImpl, {
     func: serverProcess.transform.FirstValue
   })
diff --git a/plugins/card-resources/src/components/CardAttributes.svelte b/plugins/card-resources/src/components/CardAttributes.svelte
index b847b20692..4cb11f1e0e 100644
--- a/plugins/card-resources/src/components/CardAttributes.svelte
+++ b/plugins/card-resources/src/components/CardAttributes.svelte
@@ -75,7 +75,7 @@
       {_class}
       {object}
       {showHeader}
-      readonly={readonly || !canChange(key.attr, $permissionsStore)}
+      readonly={readonly || !canChange(key.attr, $permissionsStore) || object.readonlyFields?.includes(key.key)}
       withIcon
       on:update
     />
diff --git a/plugins/card-resources/src/components/EditCardNew.svelte b/plugins/card-resources/src/components/EditCardNew.svelte
index 34682e7ad6..7ebe1514dd 100644
--- a/plugins/card-resources/src/components/EditCardNew.svelte
+++ b/plugins/card-resources/src/components/EditCardNew.svelte
@@ -153,7 +153,7 @@
     }
   })
 
-  $: _readonly = (readonly || doc?.readonly) ?? false
+  $: _readonly = (readonly || doc?.readonly || doc?.readonlyFields?.includes('title')) ?? false
   $: updatePermissionForbidden = doc && !canChangeDoc(doc?._class, doc?.space, $permissionsStore)
 </script>
 
diff --git a/plugins/card/src/index.ts b/plugins/card/src/index.ts
index 67b563c0ed..be58e4bcbf 100644
--- a/plugins/card/src/index.ts
+++ b/plugins/card/src/index.ts
@@ -61,6 +61,7 @@ export interface Card extends Doc, IconProps, VersionableDoc {
   peerId?: string
 
   readonlySections?: Ref<MasterTag>[]
+  readonlyFields?: string[]
 }
 
 export interface CardSpace extends TypedSpace {
diff --git a/plugins/process-assets/lang/cs.json b/plugins/process-assets/lang/cs.json
index a2eb5b9f16..52761a5454 100644
--- a/plugins/process-assets/lang/cs.json
+++ b/plugins/process-assets/lang/cs.json
@@ -150,7 +150,9 @@
     "ActionType": "Typ",
     "ApproveAction": "Schválit",
     "ReviewAction": "Zkontrolovat",
-    "Review": "Zkontrolovat"
+    "Review": "Zkontrolovat",
+    "LockField": "Zamknout pole",
+    "UnlockField": "Odemknout pole"
   },
   "error": {
     "MethodNotFound": "Metoda nenalezena: {methodId}",
diff --git a/plugins/process-assets/lang/de.json b/plugins/process-assets/lang/de.json
index 372510e39b..1d605074b3 100644
--- a/plugins/process-assets/lang/de.json
+++ b/plugins/process-assets/lang/de.json
@@ -150,7 +150,9 @@
     "ActionType": "Typ",
     "ApproveAction": "Genehmigen",
     "ReviewAction": "Prüfen",
-    "Review": "Prüfen"
+    "Review": "Prüfen",
+    "LockField": "Feld sperren",
+    "UnlockField": "Feld entsperren"
   },
   "error": {
     "MethodNotFound": "Methode nicht gefunden: {methodId}",
diff --git a/plugins/process-assets/lang/en.json b/plugins/process-assets/lang/en.json
index 6da4d6741d..35fb1c3fd3 100644
--- a/plugins/process-assets/lang/en.json
+++ b/plugins/process-assets/lang/en.json
@@ -155,7 +155,9 @@
     "ActionType": "Type",
     "ApproveAction": "Approve",
     "ReviewAction": "Review",
-    "Review": "Review"
+    "Review": "Review",
+    "LockField": "Lock field",
+    "UnlockField": "Unlock field"
   },
   "error": {
     "MethodNotFound": "Method not found: {methodId}",
diff --git a/plugins/process-assets/lang/es.json b/plugins/process-assets/lang/es.json
index ec7823a3cb..1166a2fdef 100644
--- a/plugins/process-assets/lang/es.json
+++ b/plugins/process-assets/lang/es.json
@@ -155,7 +155,9 @@
     "ActionType": "Tipo",
     "ApproveAction": "Aprobar",
     "ReviewAction": "Revisar",
-    "Review": "Revisar"
+    "Review": "Revisar",
+    "LockField": "Bloquear campo",
+    "UnlockField": "Desbloquear campo"
   },
   "error": {
     "MethodNotFound": "Método no encontrado: {methodId}",
diff --git a/plugins/process-assets/lang/fr.json b/plugins/process-assets/lang/fr.json
index 157b78ba8c..03187830d5 100644
--- a/plugins/process-assets/lang/fr.json
+++ b/plugins/process-assets/lang/fr.json
@@ -155,7 +155,9 @@
     "ActionType": "Type",
     "ApproveAction": "Approuver",
     "ReviewAction": "Revoir",
-    "Review": "Revoir"
+    "Review": "Revoir",
+    "LockField": "Verrouiller le champ",
+    "UnlockField": "Déverrouiller le champ"
   },
   "error": {
     "MethodNotFound": "Méthode introuvable : {methodId}",
diff --git a/plugins/process-assets/lang/it.json b/plugins/process-assets/lang/it.json
index 0a6c05f1cc..9aeccb2b83 100644
--- a/plugins/process-assets/lang/it.json
+++ b/plugins/process-assets/lang/it.json
@@ -155,7 +155,9 @@
     "ActionType": "Tipo",
     "ApproveAction": "Approva",
     "ReviewAction": "Revisa",
-    "Review": "Revisa"
+    "Review": "Revisa",
+    "LockField": "Blocca campo",
+    "UnlockField": "Sblocca campo"
   },
   "error": {
     "MethodNotFound": "Metodo non trovato: {methodId}",
diff --git a/plugins/process-assets/lang/ja.json b/plugins/process-assets/lang/ja.json
index 3f2aacc4c0..c0f302bbdd 100644
--- a/plugins/process-assets/lang/ja.json
+++ b/plugins/process-assets/lang/ja.json
@@ -154,7 +154,9 @@
     "ActionType": "タイプ",
     "ApproveAction": "承認",
     "ReviewAction": "レビュー",
-    "Review": "レビュー"
+    "Review": "レビュー",
+    "LockField": "フィールドをロック",
+    "UnlockField": "フィールドのロックを解除"
   },
   "error": {
     "MethodNotFound": "メソッドが見つかりません: {methodId}",
diff --git a/plugins/process-assets/lang/pt-br.json b/plugins/process-assets/lang/pt-br.json
index 74b2a6658e..df361c1fa7 100644
--- a/plugins/process-assets/lang/pt-br.json
+++ b/plugins/process-assets/lang/pt-br.json
@@ -143,7 +143,9 @@
     "ActionType": "Tipo",
     "ApproveAction": "Aprovar",
     "ReviewAction": "Revisar",
-    "Review": "Revisar"
+    "Review": "Revisar",
+    "LockField": "Bloquear campo",
+    "UnlockField": "Desbloquear campo"
   },
   "error": {
     "MethodNotFound": "Método não encontrado: {methodId}",
diff --git a/plugins/process-assets/lang/pt.json b/plugins/process-assets/lang/pt.json
index c47ec49867..e0444f822e 100644
--- a/plugins/process-assets/lang/pt.json
+++ b/plugins/process-assets/lang/pt.json
@@ -155,7 +155,9 @@
     "ActionType": "Tipo",
     "ApproveAction": "Aprovar",
     "ReviewAction": "Revisar",
-    "Review": "Revisar"
+    "Review": "Revisar",
+    "LockField": "Bloquear campo",
+    "UnlockField": "Desbloquear campo"
   },
   "error": {
     "MethodNotFound": "Método não encontrado: {methodId}",
diff --git a/plugins/process-assets/lang/ru.json b/plugins/process-assets/lang/ru.json
index 1f7902e096..db74447113 100644
--- a/plugins/process-assets/lang/ru.json
+++ b/plugins/process-assets/lang/ru.json
@@ -155,7 +155,9 @@
     "ActionType": "Тип",
     "ApproveAction": "Утверждение",
     "ReviewAction": "Рецензирование",
-    "Review": "Рецензировать"
+    "Review": "Рецензировать",
+    "LockField": "Заблокировать поле",
+    "UnlockField": "Разблокировать поле"
   },
   "error": {
     "MethodNotFound": "Метод не найден: {methodId}",
diff --git a/plugins/process-assets/lang/tr.json b/plugins/process-assets/lang/tr.json
index 80fa74fba6..77876e86ed 100644
--- a/plugins/process-assets/lang/tr.json
+++ b/plugins/process-assets/lang/tr.json
@@ -152,7 +152,9 @@
     "ActionType": "Tür",
     "ApproveAction": "Onayla",
     "ReviewAction": "Gözden geçir",
-    "Review": "Gözden geçir"
+    "Review": "Gözden geçir",
+    "LockField": "Alanı kilitle",
+    "UnlockField": "Alanı kilitle"
   },
   "error": {
     "MethodNotFound": "Metod bulunamadı: {methodId}",
diff --git a/plugins/process-assets/lang/zh.json b/plugins/process-assets/lang/zh.json
index 09731eef38..bbd15db200 100644
--- a/plugins/process-assets/lang/zh.json
+++ b/plugins/process-assets/lang/zh.json
@@ -155,7 +155,9 @@
     "ActionType": "类型",
     "ApproveAction": "批准",
     "ReviewAction": "审查",
-    "Review": "审查"
+    "Review": "审查",
+    "LockField": "锁定字段",
+    "UnlockField": "解锁字段"
   },
   "error": {
     "MethodNotFound": "找不到方法：{methodId}",
diff --git a/plugins/process-resources/src/components/settings/LockFieldEditor.svelte b/plugins/process-resources/src/components/settings/LockFieldEditor.svelte
new file mode 100644
index 0000000000..b2b1601614
--- /dev/null
+++ b/plugins/process-resources/src/components/settings/LockFieldEditor.svelte
@@ -0,0 +1,122 @@
+<!--
+// Copyright © 2026 Hardcore Engineering Inc.
+//
+// Licensed under the Eclipse Public License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License. You may
+// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//
+// See the License for the specific language governing permissions and
+// limitations under the License.
+-->
+<script lang="ts">
+  import cardPlugin, { Card, MasterTag, Tag } from '@hcengineering/card'
+  import core, { AnyAttribute, Class, Ref } from '@hcengineering/core'
+  import { Process, Step } from '@hcengineering/process'
+  import { Button, eventToHTMLElement, IconClose, Label, SelectPopup, showPopup, tooltip } from '@hcengineering/ui'
+  import { createEventDispatcher } from 'svelte'
+  import TagSelector from './TagSelector.svelte'
+  import presentation, { getClient } from '@hcengineering/presentation'
+
+  export let process: Process
+  export let step: Step<Card>
+
+  const params = step.params
+
+  const client = getClient()
+  const hierarchy = client.getHierarchy()
+
+  const dispatch = createEventDispatcher()
+
+  function getKeys (_class: Ref<Class<MasterTag>>): AnyAttribute[] {
+    const ignoreKeys = ['_class', 'content', 'parent', 'attachments', 'todos']
+    const attributes = hierarchy.getAllAttributes(_class, core.class.Doc)
+    const res: AnyAttribute[] = []
+    for (const [key, attr] of attributes) {
+      if (attr.hidden === true) continue
+      if (ignoreKeys.includes(key)) continue
+      res.push(attr)
+    }
+    return res
+  }
+
+  function change (value: string[]): void {
+    params.value = value
+    step.params = params
+    dispatch('change', step)
+  }
+
+  let keys: string[] = params.value ?? []
+
+  $: allAttrs = getKeys(process.masterTag)
+  $: possibleAttrs = allAttrs.filter((attr) => !keys.includes(attr.name))
+
+  function addKey (key: string): void {
+    keys = [...keys, key]
+    change(keys)
+  }
+
+  function onAdd (e: MouseEvent): void {
+    showPopup(
+      SelectPopup,
+      {
+        value: possibleAttrs.map((p) => {
+          return { id: p.name, label: p.label }
+        })
+      },
+      eventToHTMLElement(e),
+      (res) => {
+        if (res != null) {
+          addKey(res)
+        }
+      }
+    )
+  }
+
+  function remove (key: string): void {
+    keys = keys.filter((k) => k !== key)
+    change(keys)
+  }
+</script>
+
+<div class="grid">
+  {#each keys as key (key)}
+    {@const attribute = allAttrs.find((attr) => attr.name === key)}
+    {#if attribute}
+      <span
+        class="labelOnPanel"
+        use:tooltip={{
+          props: { label: attribute.label }
+        }}
+      >
+        <Label label={attribute.label} />
+      </span>
+      <div class="button flex-row-center">
+        <Button icon={IconClose} kind="ghost" on:click={() => { remove(key) }} />
+      </div>
+    {/if}
+  {/each}
+</div>
+{#if possibleAttrs.length > 0}
+  <div class="flex-center mt-4">
+    <Button label={presentation.string.Add} width={'100%'} kind={'link-bordered'} size={'large'} on:click={onAdd} />
+  </div>
+{/if}
+
+<style lang="scss">
+  .grid {
+    display: grid;
+    grid-template-columns: 1.5fr 1.5fr;
+    grid-auto-rows: minmax(2rem, max-content);
+    justify-content: start;
+    align-items: center;
+    row-gap: 0.5rem;
+    column-gap: 1rem;
+    margin: 0.25rem 2rem 0;
+    width: calc(100% - 4rem);
+    height: min-content;
+  }
+</style>
diff --git a/plugins/process-resources/src/components/settings/LockFieldPresenter.svelte b/plugins/process-resources/src/components/settings/LockFieldPresenter.svelte
new file mode 100644
index 0000000000..c0d8b6012d
--- /dev/null
+++ b/plugins/process-resources/src/components/settings/LockFieldPresenter.svelte
@@ -0,0 +1,37 @@
+<!--
+// Copyright © 2026 Hardcore Engineering Inc.
+//
+// Licensed under the Eclipse Public License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License. You may
+// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//
+// See the License for the specific language governing permissions and
+// limitations under the License.
+-->
+
+<script lang="ts">
+  import { getClient } from '@hcengineering/presentation'
+  import { Label } from '@hcengineering/ui'
+  import plugin from '../../plugin'
+  import { Process } from '@hcengineering/process'
+
+  export let process: Process
+  export let params: Record<string, any>
+  export let unlock: boolean = false
+
+  const client = getClient()
+  const h = client.getHierarchy()
+
+  const keys = params.value ?? []
+
+  const attrs = keys.map((key: string) => h.getAttribute(process.masterTag, key))
+</script>
+
+<Label label={unlock ? plugin.string.UnlockField : plugin.string.LockField} />:
+{#each attrs as attr}
+  <Label label={attr.label} />
+{/each}
diff --git a/plugins/process-resources/src/components/settings/UnLockFieldPresenter.svelte b/plugins/process-resources/src/components/settings/UnLockFieldPresenter.svelte
new file mode 100644
index 0000000000..f518bcbe8b
--- /dev/null
+++ b/plugins/process-resources/src/components/settings/UnLockFieldPresenter.svelte
@@ -0,0 +1,24 @@
+<!--
+// Copyright © 2026 Hardcore Engineering Inc.
+//
+// Licensed under the Eclipse Public License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License. You may
+// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//
+// See the License for the specific language governing permissions and
+// limitations under the License.
+-->
+
+<script lang="ts">
+  import { Process } from '@hcengineering/process'
+  import LockFieldPresenter from './LockFieldPresenter.svelte'
+
+  export let process: Process
+  export let params: Record<string, any>
+</script>
+
+<LockFieldPresenter {process} {params} unlock />
diff --git a/plugins/process-resources/src/index.ts b/plugins/process-resources/src/index.ts
index f9293cc00a..86a92ac8de 100644
--- a/plugins/process-resources/src/index.ts
+++ b/plugins/process-resources/src/index.ts
@@ -91,6 +91,9 @@ import NumberPresenter from './components/transformPresenters/NumberPresenter.sv
 import RolePresenter from './components/transformPresenters/RolePresenter.svelte'
 import ExecutionRefPresenter from './components/ExecutionRefPresenter.svelte'
 import ActionTypePresenter from './components/ActionTypePresenter.svelte'
+import LockFieldEditor from './components/settings/LockFieldEditor.svelte'
+import LockFieldPresenter from './components/settings/LockFieldPresenter.svelte'
+import UnLockFieldPresenter from './components/settings/UnLockFieldPresenter.svelte'
 
 import { exportProcesses, importProcess } from './exporter'
 import { ProcessMiddleware } from './middleware'
@@ -180,7 +183,10 @@ export default async (): Promise<Resources> => ({
     CancelSubProcessEditor,
     ToDoValuePresenter,
     ExecutionRefPresenter,
-    ActionTypePresenter
+    ActionTypePresenter,
+    LockFieldEditor,
+    LockFieldPresenter,
+    UnLockFieldPresenter
   },
   criteriaEditor: {
     BaseCriteria,
diff --git a/plugins/process-resources/src/plugin.ts b/plugins/process-resources/src/plugin.ts
index b30cfe9020..a2281d8345 100644
--- a/plugins/process-resources/src/plugin.ts
+++ b/plugins/process-resources/src/plugin.ts
@@ -89,6 +89,9 @@ export default mergeIds(processId, process, {
     LockSectionEditor: '' as AnyComponent,
     LockSectionPresenter: '' as AnyComponent,
     UnLockSectionPresenter: '' as AnyComponent,
+    LockFieldEditor: '' as AnyComponent,
+    LockFieldPresenter: '' as AnyComponent,
+    UnLockFieldPresenter: '' as AnyComponent,
     CancelToDoEditor: '' as AnyComponent,
     ToDoValuePresenter: '' as AnyComponent,
     ActionTypePresenter: '' as AnyComponent,
@@ -255,6 +258,8 @@ export default mergeIds(processId, process, {
     LockSection: '' as IntlString,
     UnlockCard: '' as IntlString,
     UnlockSection: '' as IntlString,
+    LockField: '' as IntlString,
+    UnlockField: '' as IntlString,
     Export: '' as IntlString,
     Import: '' as IntlString
   },
diff --git a/plugins/process/src/index.ts b/plugins/process/src/index.ts
index 3ac45ec815..e4fa55020f 100644
--- a/plugins/process/src/index.ts
+++ b/plugins/process/src/index.ts
@@ -255,7 +255,9 @@ export default plugin(processId, {
     LockCard: '' as Ref<Method<Card>>,
     LockSection: '' as Ref<Method<Card>>,
     UnlockCard: '' as Ref<Method<Card>>,
-    UnlockSection: '' as Ref<Method<Card>>
+    UnlockSection: '' as Ref<Method<Card>>,
+    LockField: '' as Ref<Method<Card>>,
+    UnlockField: '' as Ref<Method<Card>>
   },
   trigger: {
     OnCardUpdate: '' as Ref<Trigger>, // in fact WhenCardMatches, should migrate in future
diff --git a/server-plugins/process-resources/src/functions.ts b/server-plugins/process-resources/src/functions.ts
index f495f923b4..b3f3c799e5 100644
--- a/server-plugins/process-resources/src/functions.ts
+++ b/server-plugins/process-resources/src/functions.ts
@@ -556,11 +556,11 @@ export async function LockSection (
   const rollback: Tx[] = []
   const card = await control.client.findOne(cardPlugin.class.Card, { _id: execution.card })
   if (card === undefined) throw processError(process.error.ObjectNotFound, { _id: execution.card })
-  const readonlySections = card.readonlySections ?? []
+  const readonlySections = new Set(card.readonlySections ?? [])
   const target = params._id as Ref<MasterTag>
-  readonlySections.push(target)
+  readonlySections.add(target)
   const tx = control.client.txFactory.createTxUpdateDoc(cardPlugin.class.Card, execution.space, execution.card, {
-    readonlySections
+    readonlySections: [...readonlySections]
   })
   res.push(tx)
   rollback.push(
@@ -601,8 +601,10 @@ export async function UnlockSection (
   const card = await control.client.findOne(cardPlugin.class.Card, { _id: execution.card })
   if (card === undefined) throw processError(process.error.ObjectNotFound, { _id: execution.card })
   const target = params._id as Ref<MasterTag>
+  const readonlySections = new Set(card.readonlySections ?? [])
+  readonlySections.delete(target)
   const tx = control.client.txFactory.createTxUpdateDoc(cardPlugin.class.Card, execution.space, execution.card, {
-    $pull: { readonlySections: target }
+    readonlySections: [...readonlySections]
   })
   res.push(tx)
   rollback.push(
@@ -613,6 +615,69 @@ export async function UnlockSection (
   return { txes: res, rollback, context: [] }
 }
 
+export async function LockField (
+  params: Record<string, any>,
+  execution: Execution,
+  control: ProcessControl
+): Promise<ExecuteResult> {
+  if (params.value === undefined) throw processError(process.error.RequiredParamsNotProvided, { params: 'value' })
+  const res: Tx[] = []
+  const rollback: Tx[] = []
+  const card = await control.client.findOne(cardPlugin.class.Card, { _id: execution.card })
+  if (card === undefined) throw processError(process.error.ObjectNotFound, { _id: execution.card })
+  const oldReadonlyFields = card.readonlyFields ?? []
+  const readonlyFields = [...oldReadonlyFields]
+  const targets = Array.isArray(params.value) ? params.value : [params.value]
+  let changed = false
+  for (const target of targets) {
+    if (!readonlyFields.includes(target)) {
+      readonlyFields.push(target)
+      changed = true
+    }
+  }
+  if (!changed) {
+    return { txes: [], rollback: [], context: [] }
+  }
+  const tx = control.client.txFactory.createTxUpdateDoc(cardPlugin.class.Card, execution.space, execution.card, {
+    readonlyFields
+  })
+  res.push(tx)
+  rollback.push(
+    control.client.txFactory.createTxUpdateDoc(cardPlugin.class.Card, execution.space, execution.card, {
+      readonlyFields: oldReadonlyFields
+    })
+  )
+  return { txes: res, rollback, context: [] }
+}
+
+export async function UnlockField (
+  params: Record<string, any>,
+  execution: Execution,
+  control: ProcessControl
+): Promise<ExecuteResult> {
+  if (params.value === undefined) throw processError(process.error.RequiredParamsNotProvided, { params: 'value' })
+  const res: Tx[] = []
+  const rollback: Tx[] = []
+  const card = await control.client.findOne(cardPlugin.class.Card, { _id: execution.card })
+  if (card === undefined) throw processError(process.error.ObjectNotFound, { _id: execution.card })
+  const oldReadonlyFields = card.readonlyFields ?? []
+  const targets = Array.isArray(params.value) ? params.value : [params.value]
+  const readonlyFields = oldReadonlyFields.filter((f: string) => !targets.includes(f))
+  if (readonlyFields.length === oldReadonlyFields.length) {
+    return { txes: [], rollback: [], context: [] }
+  }
+  const tx = control.client.txFactory.createTxUpdateDoc(cardPlugin.class.Card, execution.space, execution.card, {
+    readonlyFields
+  })
+  res.push(tx)
+  rollback.push(
+    control.client.txFactory.createTxUpdateDoc(cardPlugin.class.Card, execution.space, execution.card, {
+      readonlyFields: oldReadonlyFields
+    })
+  )
+  return { txes: res, rollback, context: [] }
+}
+
 export async function CreateToDo (
   params: MethodParams<ProcessToDo>,
   execution: Execution,
diff --git a/server-plugins/process-resources/src/index.ts b/server-plugins/process-resources/src/index.ts
index 33e4e27967..c1cf9b6856 100644
--- a/server-plugins/process-resources/src/index.ts
+++ b/server-plugins/process-resources/src/index.ts
@@ -112,7 +112,9 @@ import {
   LockCard,
   LockSection,
   UnlockCard,
-  UnlockSection
+  UnlockSection,
+  LockField,
+  UnlockField
 } from './functions'
 import { FieldChangedRollback, ToDoCancellRollback, ToDoCloseRollback } from './rollback'
 
@@ -599,7 +601,9 @@ export default async () => ({
     LockCard,
     LockSection,
     UnlockCard,
-    UnlockSection
+    UnlockSection,
+    LockField,
+    UnlockField
   },
   transform: {
     CurrentDate,
diff --git a/server-plugins/process/src/index.ts b/server-plugins/process/src/index.ts
index bf29fd9f2e..6a0eb3ec6a 100644
--- a/server-plugins/process/src/index.ts
+++ b/server-plugins/process/src/index.ts
@@ -61,6 +61,8 @@ export default plugin(serverProcessId, {
     LockSection: '' as Resource<ExecuteFunc>,
     UnlockCard: '' as Resource<ExecuteFunc>,
     UnlockSection: '' as Resource<ExecuteFunc>,
+    LockField: '' as Resource<ExecuteFunc>,
+    UnlockField: '' as Resource<ExecuteFunc>,
     CheckToDoDone: '' as Resource<CheckFunc>,
     CheckToDoCancelled: '' as Resource<CheckFunc>,
     MatchCardCheck: '' as Resource<CheckFunc>,