I've noticed that when a cpt-onomy is attached to another cptonomy e.g:
Venue is attached to Facilities; a meta box in the Post Edit page is created showing either a drop down, check box or an auto-complete; with the option to assign a CPT (cpt-onomy) to another CPT.
Is it possible to show this meta box in the front-end for users to assign CPT's by themselves on a page or in a post?
If not, is it possible for front-end users to assign certain CPT's; but by using Gravity Forms, instead of accessing the back-end?
(Great plugin by the way)