Button Functions?

Hi,

I have built a spreadsheet to calculate costs which relate to units e.g. 1 unit=£10.

What i need is to be able to program a button so i can add 1 unit each click. Click 1 and the cell would show 1, click 2 and the cell would show 2 etc etc

Is there a way to do this?

That would require VBA, which means you should be posting in the Programming forum.