Gate signs should be able to make gates out of other gate like materials let's say netherbrick fences and iron bars this would definitely make me want to buy ext. Creations more just because then I could have an iron bar gate into my house for mansion or jail designs.
idea, if andrew is absolutely crazy amazing at everything. assume fence block id is 20. make fences id 20 dmage 0, nether id 20 damge 1, and iron bars id 20 damge 2. then the plugin would support. excessively difficult. but possible