The user home shares looks like this:

Folder is shared "Old_domian\@username$"
Share permission = old_domain\Domain Users = Full Control
Folder/File permission = old_domain\Domain Admins = Full Control + The User (old_domain\@userID) = Full Control.

I have to mix them, I have made the Share open for Domain Users = (everyone)´, then limit the rights on files and folders. Dont know if this is the correct way !!

As i described I want to change both the share rights and the file and folders permissions. on all the users shares.

The tool for migration from microsoft dont update the rights on build in groups.

Ex the old rights "old_domain\domain admins" should be changed or add to "new_domain\domain admins"

Hope you understand what I mean ??

\erik