OpenRoads Designer Alternate Surface Terrain/ Level Control

Folks:

I would like to define the terrain feature definitions for various Alternate Surfaces I have on various templates. Currently, I have several terrain feature definitions for various template layers (alternate surfaces), but I have to manually assign them AFTER these terrains (alternate surfaces) have been created. Is there any manner in which these terrain feature definitions may be assigned to the corridor template (create template dialog), thereby displaying them with the correct symbology automatically rather than having to manually change them to my feature definitions? Such is not a difficult thing to do- of course- but it would be handy to assign them within the template dialog or some other automated process.

Thanks

Mark