GryceYes and no. Yes, this is possible if you compile the source code from github yourself and no if you use the GUI. Soon the GUI will receive an update, so you will be able to do this kind of stuff. This update, in which the GUI will get an entire make-over, will most likely be released before the keypads are shipped.
If you compile it from source, you can do everything with the keypad that a normal mouse could do as well (you can move the mouse, click buttons, use the scroll wheel, etc):
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If you need support on how to compile the firmware, you can always send a post on reddit: /r/knops