NES user interface controls mapping

[skyblast]

It's been awhile since I've loaded up a NES emulator.  I have loaded the latest version of nestopia for mame32 on maximus.  Everything seems to be going fine but I can't seem to find out how to access the internal controls for an actual nes rom.  Currently I have rad racer up on my monitor but can't seems to find the right button to push to get the controls interface so that I can change configure them to the correct buttons/joystick?

For mame it's "tab" but what is it for nestopia?

Thanks

[notroubleclubber]

I use fce and its just right click with mouse to bring up menu. Sometimes it's escape but run the program outside m.a or you exit back to maximus

[skyblast]

Thank you.  Problem fixed!!!