Almost every battlescape button in OXC has hotkey. But somehow moving unit up/down buttons do not. Seems strange as this actions are very useful.
So I set them up.
PageUp and PageDown are used for moving view up/down; also I couldn't use W and S because S is set for Stats. So I decided default values to be W and X.
Tests proof that X for "Move unit below" and X for "Clear inventory" do not interfere, both work just ok.
P. S. Now there is only one button without hotkey -- "Multilevel view". I just see no use in that one, so I ignored it.
Here's my pull request:
https://github.com/OpenXcom/OpenXcom/pull/1446
