Locking and Unlocking Layers
You can lock a selected layer to protect any objects on it from being changed. Once locked, you can unlock the layer to make changes to any objects on it.
How to lock or unlock a layer
- Select a layer.
- Do one of the following:
| ‣ | Click the Lock icon of a layer. |
| ‣ | Select Layer > Lock/Unlock Layers. |
| ‣ | In the Layer toolbar, click the Lock/Unlock Layers button. |
| ‣ | Press Alt+L. |