haripopuri, thank you very much for your reply but in a quick test on your solution it seems like it isn´t working the way I need it. But thank you for your help!

Anyway, I found a solution to the problem in ragulduy's code, that wasn't working on merged cells.
On: " If target.Value = "" Then "; we should have: " If target(1).Value = "" Then ".
That solved it!

Thank you very much for your help!