docs(eln): Add text templates guide

docs/eln/admin/user_management.mdx

@@ -59,6 +59,17 @@ An account can be frozen by deactivating it here. Login to this account is then
 If the user is currently logged-in, its session will be invalidated.
 The data shared by the user to other users is still accessible to them.
 
+:::info
+This feature is available starting from version 4.0.
+:::
+## Global Text Template Editor Rights
+
+Every user can create personal templates without any special permission. If you want someone to also be able to create or edit global templates, you need to give them the `Global Text Template Editor` privilege from this page.
+
+![global-template-editor-button](@site/static/img/admin_ui/text_template/global_template_editor_button.png)
+
+Everyone can see the **Global** tab and browse global templates through My Templates page. This privilege only unlocks the ability to add, edit, or delete them.
+
 ## User Quota
 
 The **Disk Usage** column shows how much storage a user is allowed to use

docs/eln/ui/my_templates.mdx

@@ -0,0 +1,47 @@
+---
+title: My Templates
+---
+
+import { faTrashAlt, faCog } from "@fortawesome/free-solid-svg-icons";
+import { Btn } from "@site/src/js/btn.js";
+
+:::info
+This feature is available starting from version 4.0.
+:::
+
+My Templates is where you manage reusable text snippets for editors throughout the ELN.
+Everyone can create personal templates. Global templates are visible to everyone and editable only by users with the [Global Template Editor](../admin/user_management#global-text-template-editor-rights) privilege.
+
+## Opening My Templates
+
+Click **My Templates** inside the <Btn mixed={[faCog]} color={"secondary"}/> toolbar settings popover from a text editor. It opens in the same tab. When you're done, hit **Back** to return to the editor — your toolbar picks up the changes straight away, no reload needed.
+
+![My Templates page screenshot](/img/text_templates/my-template.png)
+
+
+The page has two tabs:
+
+- **Personal (My)** — your own templates, only visible to you
+- **Global** — shared templates visible to everyone; you can edit them only if you have [Global Template Editor](../admin/user_management#global-text-template-editor-rights) rights
+
+## Creating a template
+
+1. Click **New**.
+2. Give it a **Name** — this is what shows up in the MT dropdown.
+3. Optionally add a **Short Label** (shown as text on the toolbar button) and an **Icon Class** to give it an icon. Icons can come from [Font Awesome](https://fontawesome.com/v4/icons/), or the internal Chemotion ELN icon libraries. Search those libraries for a class name that matches the icon you want. For example:
+   - a thermometer: `fa fa-thermometer-quarter`
+   - a tube: `icon-residue-adsorbed`
+4. Write the content in the editor.
+5. Click **Save Template**.
+
+The icon shows when the template is pinned directly to the toolbar. When it is added to a dropdown menu, the text label is shown instead.
+
+If a template with that name already exists, you'll see an error and nothing will be saved.
+
+## Editing a template
+
+Pick a template from the list on the left, make your changes, and click **Update Template**.
+
+## Deleting a template
+
+Click the <Btn mixed={[faTrashAlt]} color={"danger"}/> button next to it in the list.

docs/eln/ui/text_editor.mdx

@@ -2,31 +2,41 @@
 title: Text Editor
 ---
 
-import { faPlus, faTrashAlt } from "@fortawesome/free-solid-svg-icons";
+import { faTrashAlt } from "@fortawesome/free-solid-svg-icons";
 import { Btn } from "@site/src/js/btn.js";
 
-Throughout the ELN, you can work with text editors in many different contexts.
-`Text templates` are meant to help you write by providing ready-made paragraphs that can be inserted in many text editors. They can be configured by an admin in the [admin panel](../admin/text_template).
+Text editors appear throughout the ELN and text templates let you insert ready-made paragraphs with a single click — handy for content you write repeatedly.
+Everyone can create their own personal templates. Global templates (shared across the whole ELN) can be viewed by anyone and edited by users with the [Global Template Editor](../admin/user_management#global-text-template-editor-rights) privilege.
 
 ![](/img/20231013_customTextblocks.png)
 
-**Formatting utilities**: standard utilities for formatting text (like in Word)  
-**User-defined custom text templates:** icons of predefined `text templates`  
-**Configuration text templates**: Pop-up menu for configuration of `text templates` in editor
+**Formatting utilities**: standard text formatting (bold, italic, lists, etc.).<br />
+**User-defined custom text templates:** icons or dropdown menus for your templates or global templates.<br />
+**Configuration**: pop-up menu to configure `text templates` in the editor.
 
 ## Using and customizing icons
 
-You can use predefined text templates if your cursor is active in the editor.
-By clicking on an icon the `text template` content will appear at your cursor.
+You can use predefined templates and your own templates when your cursor is active in the editor.
+Click an icon to insert the `text template` content at the cursor position.
 
 The following video shows you how to customize your toolbar:
 
 ![text_template_editor](/img/20231013_configTextTemplatesIcon.gif)
 
 ## Using and customizing templates dropdown menus
 
-In addition you can organize your templates in dropdown menus:
+You can also group templates into dropdown menus instead of individual icons:
 
 ![text_template_editor](/img/20231013_configTextTemplatesDropDown.gif)
 
-You can remove all elements by clicking <Btn mixed={[faTrashAlt]} color={"danger"}/>
+Click <Btn mixed={[faTrashAlt]} color={"danger"}/> to remove any item from the toolbar or dropdown.
+
+:::info
+This feature is available starting from version 4.0.
+:::
+## My Templates
+
+The **MT dropdown** in the toolbar can show predefined templates as well as your personal templates and new global templates. Open the toolbar settings menu and click [My Templates](./my_templates) to manage the templates that appear there.
+
+![MT dropdown](/img/text_templates/mt-dropdown.png)
+