Alternate control and input options (with a moving DOF chair) to manipulate menus, when all other buttons in use on main controls?

Short of using voice attack, i’m wondering what alternative controls people use to manipulate things like the (somewhat meh) built in ATC or other quick commands or for pilot2atc etc?

I guess one option was the elgato $129 steam deck device, but it may not clamp down very well… honestly not sure where i’d put something new. Also seems pricey just to gain a few buttons tho looks nice
https://www.amazon.com/gp/product/B09738CV2G/ref=ewc_pr_img_1?smid=ATVPDKIKX0DER&th=1

Plan b was to use my honeycomb right white button + hat switch for menu manipulation.

I have knob fs, honeycomb yoke/quadrant and a track ball mouse for the h6 dof chair