Default Game Keyboard app

Hi everyone. I just discovered this app, a few days ago, and it seems to be pretty awesome for all the Captivate Glide users like me that loves to play games. I was tryng to set up the options to play big games like Gameloft or EA ones, using the physical keyboard, but it is harder than I thought. The most hard think I can't really understand is how to get Macros working. Someone of you know this app and can help me with it? Or maybe someone knows another app that can help me play games with physical keyboard?