I’m using “Renoise 64Bit - V3.3.2 (Built: Mar 7 2021)” on a “Mac mini (M1, 2020)” running “macOS 12.2” using a “Magic Keyboard with Numeric Keypad” (see Magic Keyboard with Numeric Keypad for Mac models - Apple ) (that is, the most up to date software on the most up to date machine using a currently shipping keyboard).
If I go to the Renoise Preferences window and select “Keys” and then select the “New assignment:” text box and press the right command key on my keyboard, then the text box is filled with “RControl”. Similarly, the physical right control key gets mapped to “RMeta”. The right option gets mapped to “RAlt”, which seems mostly correct, but calling it “ROption” may be more clear.
Perhaps all this is intended behavior, but it certainly confused me.