I need to build up a tally sheet for tracking some maintenance frequencies, so as I am going through a large stack of these different procedures I want to be able to click on the appropriate cell and have it increment up one with the left mouse button or down with the right mouse button.I have Excel2003 and I have been trying to figure out how to make it happen with VBA and a custom function but it seems to be all set up for forms and I would like to make this happen right on the worksheet. I would really appreciate a pointer that could steer me in the right direction.

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Rick Roberson