Is it possible in NIOS to grant admin access based on a attribute for a specific set of networks

[#1]

I have a read-only role called Juno that is defined for a group of users. In our extensible attributes I have created an attribute for networks called Division and have defined it with a list that has all of our divisions.
For a specifc number of subnets I would like to  allow those in the Juno role  to be able to administer to the networks that have the Division attribute set at DOT.

Is this possible or do I have to update the Permissions tab for each network that they would administer to and then set the Juno group  to Read/Write?

[#2]

Should be possible but I'm fuzzy on the exact steps. I think what you are after is UI > Administration > Administrators > Permissions > Create "Object" permission which is where you can start filtering on types with Extensible Attributes.