LeeS
Imperator
There would be no reason you should not be able to. Just bear in mind that the dummy might still not be given depending on the exact method you use to lock it out from being normally available as an item to be constructed/purchased.
So far as doing it via adding the building directly from an lua script, there would really be no need to tie the dummy to a trait. The lua script would be written to never add the dummy for any other civ (or leader) than the desired one.
So far as doing it via adding the building directly from an lua script, there would really be no need to tie the dummy to a trait. The lua script would be written to never add the dummy for any other civ (or leader) than the desired one.