[Feature request] "use alternate assets" toggle being assignable to button or key

I just installed the 3ds asset pack on my install and one of the things I like to do is compare the two versions. Right now I have to go through the menu to turn the 3ds assets on and off. I wish it could be assigned to a key or button on the controller. This is something you can already do on Halo MCC with Halo Ce and 2. The back button switches between original and remastered assets. I wish for something similar with SOH.

I am use the MacReady Echo 8.0.4 linux version on steamdeck right now.