Lovin the xournal however I cannot find a way of making it truely fullscreen.

I have tried editing the list of items to show when fullscreened in .xournal config file. So, two questions:

1. Is it possible to have a truely fullscreen fullscreen i.e. no ui whatsoever? (i can use f key to toggle fullscreen)

2. Is it possible to use the volume keys as modifiers for the pen? i.e. left button makes it eraser, right makes it the pan tool?