Editor Preferences
Show Margin -- Check to show the margin.
Show line numbers -- Check to show line numbers in the margin.
Show whitespace -- Check to show or whitespace:
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| • | Newlines are displayed as ¶ |
| • | Spaces are displayed as • |
| • | Tabs are displayed as | |
Wrap text -- Check to wrap text.
Block Undo/Redo -- Check if you want to group your text operation in a single Undo/Redo operation.