Thanks for bringing up the Caps-Issue. I'm afraid that it's not possible with the previously uploaded .okp files. The corresponding key events are KEY_MENU_PAGE_DOWN or KEY_MENU_PAGE_UP, which both were not mapped to any button on the GCW Zero (since I didn't think they would be needed).
I've prepared a
new .opk file with those key bindings mapped to the shoulder keys. Only thing bothering me: I'm running out of keys that are not yet assigned, so there might now be input conflicts (although the UQM source code on input events is quite well done and should always know which of the multiple bindings of a single key is meant)...
While I'm pretty sure it isn't, it might be necessary to reset your key mappings by deleting $HOME/.uqm/flight.cfg.