Endpoint Manager won't allow me to pick a template

I have 2 brands of phones set up in my freepbx gui, and after I select the brand it will not let me select a template, it just has a small (enough for 2-3 characters) blank drop down box (although they are already set up, and in fact working with some existing extensions), and it will not save the MAC address (maybe because I can’t select a template).

Please help!

I successfully did it through endpoint manager.