I second that, is there a way to activate with triggers?

This could enable easy creation of wave based defence play.
Since we can already activate triggers with radio commands, being able to tie spawners to triggers\scripts would be awesome.

NOTE: I may be an idiot, and I've not tried messing around with spawners and triggers, so it might already be possible?

At one point you used to be able to move the spawner objects around the map. So you can have you trigger move a spawner into range of your troops so it's own radius activation thing gets triggered.

It was a while ago, but I think that functionality broke at some point. It's easy to test out. Just have a radio that moves a spawner ontop of player.

This is definitely important for mission editing

I am currently looking for the same. This or more options for the spawner activation. A "player" option would be enough for my purpose.