Feature Request: Ability to have multiple keys assigned to one GPIO.

[Greg1996]

Have you checked the GP2040-CE documentation HERE to confirm this feature doesn't already exist?

Yes.

### Which problem is this feature request solving?

This feature doesn't necessarily solve a problem, but it does expand the capabilities and usefulness of the software beyond fighting games.

### Describe the solution you would like to see

The ability to have multiple keys assigned to one GPIO pin in keyboard mode. This will act as a macro, allowing the user to enter multiple key presses within one button press on their device. For instance, allow the user to set the 'up' GPIO pin to 'Ctrl+S' on the keyboard to allow shortcut execution with one button press. This will turn the device into a macro-pad alternative, thus extending its functionality even further.

### Describe alternatives you've considered

There are no alternative solutions to this feature.

### Can you submit a pull request?

No.

Are you planning on working on this feature yourself?

No.

[TheOpponent]

Would it be possible to also allow multiple outputs from a single input in the controller modes as well? Using macros to simulate two simultaneous button presses from a single press of a macro button doesn't work for me on Pi Pico.