Attempting to make my first custom sight

I’m trying to make a universal ACOG-Chevron style custom sight, I’m mostly just stumbling my way through it, and I do have the wiki open. any tips are appreciated, but I’m mainly here to ask about the Alt+F9 shortcut, because it doesn’t seem to be working on my game, be it in my hangar, or in a test drive, in the menu, or otherwise. did they change it to something else with the recent update?

Alt+F9 might be bound to something else for you. Check controls.

yep, found it, thank you, I’d already checked the common and spectator camera, but figures I should’ve checked the ground controls