With the last release beta6 I read that there is a new feature "2 player controller config options". I don't understand how to setup the second player control. When I hit "tab" on the main menu I can select control Setup but nothing change compare to previous release, I can configure only one player. I probably missed something ;-)
The controller setup on the main screen grabs a list of controls (determined by which platform you choose), runs through each of the controls and maps them, then it will ask if you want to configure controller 2 (if it's supported). After that, it pushes to mapped controls to a system specific 'formatter', which writes the configuration file for that specific emulator.
I think that something went wrong during the update because after formating and reinstall beta7 from scratch everything works fine. Thanks for your help