On a dedicated server, can a POI that was set to Regen but was completely salvaged be added back? Seems like this could be done by editing a file. Yes? No?
Possibly, but I believe you would have to "restart" the planet. Which would remove any structures/craft previously built. And on a side, regent doesn't work if you completely destroy a poi. You must leave one block.
And on another note....if you are the admin of the dedicated server and have its Id number you can just spawn it back in yourself.