I've tried to add Advanced tab in each accounts to Domain Admins. I'd like to make Domain Admins to change accounts' quota size. I know I have to configure grants somehow. However, I don't know the parameters in "configure grants".

Does someone set successfully?

Target Type=?
Target Name=ourdomain
Right Type=?
Attribute Right Verb=write
Attribute right Target Type=account
Attribute Name=?