Would be nice if TAB/SHIFT+TAB would work for changing indentation when you are in the list. This is common in office applications and I don't really see other uses for TAB when you are in the list.
Also - if I can report this without opening another bug :-) - when the list element is empty and you press ENTER you should go out of the list mode (finish the list just like clicking on a list button). This is also common in office applications.
Version: unspecified
Severity: enhancement