Merging nsf files & changing passwords

Hi all,

I need to know how to do the following:

  1. One user has two USERNAME.NSF databases. How do I merge them up so that he is able to see emails from the two databases.

  2. How do I give permission of one user’s NAMES.NSF data to another on the same machine so that the new person is able to see address book of his predecessor?

  3. How do I change Password in Lotus Notes on Client Machine?

Thanks

Mike