Naming Formats

Naming Formats

I create user folders based on a custom attribute which contains a two digit number, sn and givenName. (11LastFirst). Is there a way to have this data (attribute) available to create a naming format. I also use it for sAMAccountName.
 
Also... Am I missing something or is there no way to edit an existing format.
 
TIA,
mhowle

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