The Options menu in the main menu lists various options that you can toggle at any time to adjust AceText’s behavior to match what you’re trying to accomplish. Many of these options have buttons on the main toolbar.
AceText Editor
AceText Tower
Focus Editor
Focus Clip Tree
Always Visible
Live Spell Check
Word Wrap
Indent Wrapped Lines
Right-to-Left
Persistent Selections
Line Numbers
Visualize Spaces
Visualize Line Breaks
The Preferences item gives you access to the Preferences screen, which provides a wide range of configuration options.