Added a new node (Setup) for modules in app explorer

content/en/docs/refguide/modeling/app-explorer/_index.md

@@ -15,7 +15,7 @@ The **App Explorer** shows the complete structure of your app including all docu
 The **App Explorer** consists of the following:
 
 * **App** folder – contains settings and documents that apply to your app as a whole (for more information, see [Apps](/refguide/app/))
-* **Modules** – contain settings, a domain model, and documents that apply to this module (for more information, see [Modules](/refguide/modules/)) 
+* **Modules** – contain settings, a domain model, setup, and documents that apply to this module (for more information, see [Modules](/refguide/modules/)) 
     * **Domain model** – a model that describes the information (or data) used by your application in an abstract way; one module can have one domain model only 
     * **Document** – an individual file, for example, a [page](/refguide/pages/), [microflow](/refguide/microflows/), or a [scheduled event](/refguide/scheduled-events/)
 

content/en/docs/refguide/modeling/app-explorer/modules/setup.md

@@ -0,0 +1,72 @@
+---
+title: "Setup"
+url: /refguide/setup/
+---
+
+
+## Introduction
+
+The **Setup** node helps consumers of a module quickly identify which documents are intended to be used first. Unlike the earlier convention of placing documents in a separate folder for visibility, the **Setup** node lets you highlight important documents while keeping them in their original location in the module structure.
+
+Adding a document to **Setup** does not move it. The document remains in its original folder and is also shown under **Setup** for easier discovery.
+
+{{< figure src="/attachments/refguide/modeling/app-explorer/modules/setup/setup.png" class="no-border" width="300" >}}
+
+{{% alert color="info" %}}
+The **Setup** node is available only for [app modules](/refguide/module-settings/#app-module). It is not available for [add-on](/refguide/module-settings/#add-on-module) or [solution](/refguide/module-settings/#solution-module) modules.
+{{% /alert %}}
+## Adding Documents to Setup
+
+You can add a document or folder to **Setup** in the following ways:
+
+* Right-click the document or folder and select **Add to Setup**
+* Drag a document or folder to the **Setup** node
+
+
+## Removing Documents from Setup
+
+You can remove a document or folder from **Setup** in the following ways:
+
+* Right-click the item in **Setup** and select **Remove from Setup**
+* Select the item in **Setup** and press <kbd>Delete</kbd>
+
+When you remove an item from **Setup**, a confirmation dialog is displayed. In this dialog, you can choose to remove the item from **Setup** only, or also remove the original document.
+
+## Context Menu Behavior
+
+### Right-Click the Setup Node
+
+When you right-click the **Setup** node, the context menu shows the option **Add folder**, which adds a folder to **Setup**. You can then drag documents into this folder.
+
+### Right-Click a Folder in Setup
+
+When you right-click a folder in **Setup**, the context menu shows three options:
+
+{{< figure src="/attachments/refguide/modeling/app-explorer/modules//setup/folder-context-options.png" class="no-border" >}}
+
+* **Add folder** – adds a subfolder to the selected folder
+* **Rename** – renames the selected folder
+* **Remove from Setup** – shows a warning message and, after confirmation, removes the folder from **Setup**
+
+    {{< figure src="/attachments/refguide/modeling/app-explorer/modules/setup/folder-remove-warning.png" class="no-border" >}}
+
+### Right-Click a Document
+
+When you right-click a document in **Setup**, the context menu shows two options:
+
+{{< figure src="/attachments/refguide/modeling/app-explorer/modules/setup/document-context-options.png" class="no-border" >}}
+
+* **Open** – opens the original document in the module structure
+* **Remove from Setup** – shows a warning message and, after confirmation, removes the document or folder from **Setup** with the option to also remove the original document 
+
+    {{< figure src="/attachments/refguide/modeling/app-explorer/modules/setup/document-remove-warning.png" class="no-border" >}}
+
+## Converting Existing Use Me Folders
+
+When the **Setup** feature is introduced in an app, Studio Pro performs a one-time conversion to preserve existing module conventions.
+
+For each module, Studio Pro checks whether there is a first-level folder whose name is a supported variation of **Use Me**. Matching is case-insensitive. The folder name may optionally start with an underscore (`_`), and `Use` and `Me` may be written together or separated by a space, underscore, or hyphen. Examples include **UseMe**, **Use Me**, **Use_Me**, **Use-Me**, **_UseMe**, and **USE_ME**.
+
+All documents in the matching folder are automatically shown under the **Setup** node. If the folder contains subfolders, that structure is also shown under **Setup**.
+
+This conversion does not move the original documents. The original documents remain in their existing folder locations.