Volume buttons and zooming

It is maybe just me, but I find it odd to use volume up button to zoom in, and volume down to zoom out. I expect it to be oposite. Is it possible to add option to swap functions of these two buttons?

Also, I noticed, if I am using those buttons and then some dialog prompts, like dialog to choose map, as I keep pressing volume button while dialog is on, then I actually set ringing volume. It seems, when in dialog, OruxMaps looses control over those buttons. Is it possible to fix that, so, while dialog is displayed, volume buttons do not have any function? This way I always mess up ringing volume.