Let's Make Robots!

Line following/normal mode switching?

I was wondering ; can you upgrade start here robot to a line follower and switch between line following and the normal mode by clicking/switchng a button! Cause i want it to go from my kitchen to my sofa so my mom can place a can of coce on it and press the button and volia! I heard of the new picaxe upgrade that has a remote control! that would help :)