Add a way to bind hotbar slots to button combinations

Is your feature request related to a problem? Please describe.
The thing I miss the most from playing with MnK is the 1-9 slots. Yes, theres the radial wheel but for me its inconvenient and slow, I'd much prefer actual button combinations (which it seems aren't currently possible with controlify).

Describe the solution you'd like
I wish I could bind the 1-9 hotbar slots to button combinations like for example L1+X is 1, L1+square is 2, etc up till 4 and then R1+X is 5, R1+square is 6 etc

Describe alternatives you've considered
I tried using AntiMicroX to bind L1+X to 1 for example, and while it does work (if I enable mixed input in controlify), theres the double input issue cuz yes, it switches to the 1st slot but also it jumps (X button). Its even worse with square which is switch to offhand

Additional context
If theres any advice on how I could do that (maybe theres already a way without adding new features), I'd much appreciate the help

No files, tests, or entry points are named. Start by locating Controlify's controller binding and hotbar-slot handling, then determine how button combinations can suppress the underlying X or square actions; done means L1/R1 combinations select slots 1–9 without triggering their normal actions.