possible to cycle between assigned keys?

Hi, I'm playing a game and i want to be able to cycle between weapons with one key (using razer naga mouse, so mapping function to side button) the game places weapon in slots (1,2,3 etc) but i dont want to waste that many keys on my mouse for each one so is it possible to make it so pressing just one button will cycle between keybaord keys (1,2,3,etc) each time i press it? this would be amazing help if anyone knows how!