You can have mamewah escape straight to whatever you want without going through the menu. I didn't know if you were serious because having the power button and the pause button together doesn't make much sense to me. On a side note, I know that someone made a batch file that would make it so the escape button had to be held in for two seconds before a game would be existed to avoid accidental escapes in the heat of battle. I plan on having a power button out of normal reach, and using a shaaazam button to escape games. I would love to use the pause button as a shift as well so that both would have to be pressed to exit a game. I'm still researching that option.
BTW, didn't mean to leave such a rude first response, it was my first reaction.