> ## Documentation Index > Fetch the complete documentation index at: https://docs.embedd.it/llms.txt > Use this file to discover all available pages before exploring further. # Sidebar Sidebar After an MCU/MPU is added, the corresponding model appears in the MCU/MPU Sidebar Panel and can be expanded. Expanding the model reveals the *Pin Configuration* section, which contains the device tree structure with configurable nodes. Users can interact with the nodes within the device tree in the following ways: | **Interaction** | **User Action** | **What happens / Notes** | | :----------------------------- | :--------------------------------------------------------------------------------------- | :----------------------------------------------------------------------------------------- | | Open the MCU/MPU schematic | Click **Pin Configuration** section **or** click the **name of any node** in the sidebar | Opens the MCU/MPU schematic view | | Open a node’s Properties Panel | Select the node’s **name** in the sidebar | Opens the Properties Panel for that node | | Rename a node | Right-click the node, select **Rename** | Node name becomes editable / is updated | | Delete a node | Right-click the node, select **Delete** | Removes the node | | Add a new node | Click the **\[ + ]** icon next to the desired **parent node** | Opens a dialog to either create a **blank node** or pick a node from an **available list** | | Reorder / relocate nodes | Use **drag-and-drop** | Changes node order and/or parent location |