The new plateaus and ramps added in Titans are simply huge CSGs. It's nice but it still make the use quite rigid. It would be useful to have smaller CSGs with only a cliff section (straight, curved), only elevated terrain, only the ramp edges and ramp slopes (so you can make wide ramps). It's not hard to do for you, you just have to cut the large CSGS with the sections mentioned above. Pretty please.
That would be kinda handy however it'll be tricky to get the same heights( placing a ramp and a plateau behind it). A snap on function would add a lot to something like this. Still good idea though
if im correct you want to make peninsula type cliffs with only one entrance and three sides... just put impassable wall in the way of the one ramp you don't want to be used, and make it really short so units can fire over it....
I have to check if you clip multiple current plateaus, they end up as one and no tiny cliff end up obstructing the pathing.