Subnetwork controller not visible in dropdown network categort

Question

I am trying to configure electric distribution Utility network. I assigned partitioned as Tier definition. Now when i am trying to set network category as Subnetwork controller, Subnetwork controller option is not appearing in drop down arrow for device feature class.  My Tier definition is partitioned.

SurajJha1 · Accepted Answer

Thanks Michael for response, My problem has been resolved the issue was i was setting the network category before setting the terminal configuration.