How to call up the source panel
If the source panel isn't visible currently, you can easily call it up again.
How it works:
1. Click on the view menu. The menu with its various commands will be opened.
2. Click on the command Source panel. The command is active when you see a tick before it in the menu. The source panel will immediately appear at the left-hand side.
You can hide the source panel with the same procedure or using the right-hand side sidebar.
You can find further information under:
Source panel
Command Source panel (View menu)
Source symbol
How to close the source panel