I have an app which has a context help panel. This sits
inside an HDividedBox along with the main app in the other half. I
want to add buttons to show and hide the help panel.
Is there a way to either hide the entire section of the
HDividedBox (I can hide the panel itself, it then leaves a huge
white gap where the box stays "open"), or a way to programmatically
change the position of the divider to hide it?