I have gotten the basics of buttons down but I can't figure out how to do a simple counter where on a button click you Start counting up 1 2 3 4, but at intervals of X ( as defined in a cell ) so for example - if X is 3 the counter would go 1, wait 3 seconds, 2, wait 3 seconds, 3 - this will keep counting until Y seconds have passed where Y is defined in an other cell.

Anyone have any ideas how to go about this?