I created that application for PC. It's some shortcut to work faster.
Leave the mouse do the job for you.
Ctrl+S = save
F1 = Script reference
F2 = Game Mode,
Ctrl+a = add actor
And the new one
Ctrl+e = export to geplayer, it's going to erase the box and type geplayer for you.
[EDIT]
New: faster export, 800 ms. lol.
Enjoy