Enhancement: For desktop instances, would be cool to control cams motion (PTZ) using keyboard arrow keys

[friskyweasel]

Current workflow to move cams:

1. Launch app and pull up camera montage
2. Click a specific camera which brings it full size and upper right / bottom right pink menu buttons appear
3. Click bottom right menu button to expand it
4. click "Control"
5. Click Up / Down / Left / Right arrow icons to move cam in the desired direction

Proposed workflow to move cams:
Keep the above workflow in place, but after step #2 above, add listeners that would respond to the physical keyboard's (<- for desktop users) up/down/left/right buttons, and would trigger the same action(s) as step #4 above (move the cameras using keyboard arrows). The GUI actually provides 8 possible movement directions, but to me this feature would be just fine even if it only allowed movement in 4 directions (up/down/left/right).

[pliablepixels]

Refer to #675 doing a superset. If you are ok, lets close this and track progress there

[friskyweasel]

very nice - thank you for all your hard work and effort!