For Question 1, here are some links that explain Events.

http://www.mvps.org/dmcritchie/excel/event.htm
http://www.cpearson.com/excel/events.htm

http://support.microsoft.com/default...20&Product=xlw
http://support.microsoft.com/default...b;EN-US;291294
http://support.microsoft.com/default...b;EN-US;161761

HTH
Paul
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Be advised to back up your WorkBook before attempting to make changes.
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1) I'm not familiar with using of events in VBA and I'm not able to find
some good help on the Inet. Do you know some ? I'm not able to find in at
MSDN.

Thanx
Filip