Multiple buttons pressed at once in unity?

I want to have two buttons that need to be pressed at once. When i run my program, one button seems to override the other buttons and thus only one button executes at a time. Is it possible to run 2 button presses at the same time from 2 separate buttons?

Thanks

if your using ongui I dont think its possible, your better odf using guitextures and hit test or making 3d gui objects and using screenpointtoray