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Sources/CustomControls/README.md

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-# Wincc Unified Custom Web Controls
+# Custom Web Controls Installation Guide
+
+This guide provides instructions on how to install Custom Web Controls for a TIA Portal project, enabling the addition of freely-programmable web controls that extend beyond the functionalities offered by the default toolbox.
+
+## Prerequisites
+
+- A project has been created in TIA Portal.
+- An HMI device has been added to the project.
+- At least one screen has been created for the HMI device.
+
+## Installation Steps
+
+1. **Open Project Directory**: Navigate to the directory where your TIA Portal project is stored.
+
+2. **Access UserFiles**: Open the `UserFiles` subfolder within the project directory.
+
+3. **Create CustomControls Folder**: Within the `UserFiles` subfolder, create a new folder named `CustomControls`.
+
+4. **Add Control File**: Store the custom web control program as a `*.zip` file in the `CustomControls` folder.
+
+5. **Update Toolbox in TIA Portal**:
+    - Open TIA Portal.
+    - Navigate to the `Toolbox` > `My Controls` task card.
+    - Click on the `Update` button. Your Custom Web Control will now be displayed in the task card.
+
+6. **Use the Control**:
+    - Drag the Custom Web Control from the `Toolbox` > `My Controls` task card onto your screen.
+    - Select the Control to configure it.
+
+7. **Configure Events**:
+    - In the Inspector window, navigate to `Properties > Events`.
+    - Configure system functions or scripts for the events used in the Control.
+
+8. **Set Interface Properties**:
+    - Go to `Properties > Properties > Interface` in the Inspector window.
+    - Assign static values for the interface properties or dynamize them according to your requirements.
+    - Note: By default, the Control's access to tags is "Read only". If you want the Control to modify tag values, you need to uncheck this option.
+
+9. **Compile and Load**:
+    - Compile and load the Runtime project to your HMI device.
 ***
 ## Development Environment
 * TIA PORTAL V17 update 01