When the developers of PCSX2 expand it to include arcade games, it will have an arcade control scheme which will be located in the gamepad setting.
Here's what it will look like:
Test switch
For each player:
- Buttons 1-10
- Joystick (Up, Down, Left, Right)
- Start button
- Coin
- Steering wheel
- Gas pedal
- Brake pedal
- Shift lever
- Service button
Also, there will be a cursor for gun shooting games.
Thanks for the information.