To make this mod more useful alongside other mods, there should be options for emulating mouse scroll wheel inputs directly, beyond just switching the active hotbar item. This would allow controller use in situations where a modded item has some secondary function with the scroll wheel.

Example, from what I was trying to do, involving Controllable and Camera Mod.
Right click activates the camera, and scroll wheel zooms the camera while the camera is active.
With Controllable, I expected L1 and R1 scroll hotbar controls to act like the scroll wheel universally, but they are hardcoded to change the held item instead.