In text mode, the left and right arrow may be used to provide
quicker move in the treemenu. The left arrow close the current
branch. You do not have to move up to reach the upper menu
and then use enter to close it (this still work though). For example
if you are located deep down in the tree menu, you just to hit
the left arrow few times to reach the "config" top level menu.
The right arrow opens a closed menu, but tries to position
the cursor on the line you were when you used the left arrow
to close the menu.
Using both keys allows you to visit various areas in the tree menu
very quickly. Give it a try.
A help screen was written and is always available while using
the treemenu in text mode.