[RESOLVED] Snes9x x Multi-tap x Configuration in Gameex

I started using the emulator Snes9x.

The problem is:

Most of the time, when we started a game using this emulator through GameEx everything works perfectly. But some games that have a greater number of players set the controls will not work because the "multi-tap" option must be enabled.

My question: How to solve this problem using this emulator?

 

Is there any way to make the option of "multi-tap" be activated in certain games?