Mr Johnson (Babs) is correct. Just get the least expensive Stream Deck (six buttons, but you can make multiple "pages" of six buttons each with its own OBS hotkey). I use three Macs in my OBS live-streaming set-up, each with its Stream Deck (XL for the Mac Studio, 15-button for the Mac Mini, and six-button for the MacBook Pro). The Studio is the streaming machine running OBS, the Mini runs a Keynote deck with slides of images, graphics, embedded videos, etc.), and the MBP is for remote guests via Skype or Zoom. I also use a Stream Deck pedal on the MacBook Pro to control Zoom calls. I produce, host, and switch between 18 scenes during the live shows (twice a week, #616 yesterday), and run all audio via a Rodecaster Pro. The Stream Decks greatly ease the workflow, whether live or prepping shows, especially given the ongoing problem with OBS hotkeys. OBS is an amazing gift to our community of streamers, for which I am entirely grateful. Remember, too, that most of the OBS "customer base" is on PCs; therefore, we Mac users must be a little more patient with the Devs who always get around to fixing our problems in due course.