Grandstream - Allow Auto Answer by Call-Info

This setting is not in the Basefile for the phones I am using (2135 and 2170) and there doesn’t seem to be a way to add it in - How do I get this into Endpoint Manager (and set it) so Paging and Intercom works?

why can’t you add an item to the basefile? is there not an add entry button?

Add entry wasn’t there when I checked - now it is.