Gate contact (PG9312)

I purchased two PG9312 PowerG Wireless Outdoor Contacts from you for use on two exterior gates. How do I designate these as Gates on so the rules can be created as such under Garages and Gates?

Garages and Gates is just a designation for Liftmaster and Linear Z-wave garage openers.

You can create the same notification by selecting sensor activity and choosing the PG9312