Link larva to hatchery

[AionCannonzSC2]

I have custom-placed hatcheries on my map and they should have 3 larva at the start. How do I either

- link larva to a hatchery when they are pre-placed
- trigger the hatchery to make 3 larva

The larva must count against the hatchery's larva count (so it doesnt make more until it has less than 3) and they also should be selected when the player uses "select larva" on the hatchery

 

[splashy5]

Hatchery's already have a behavior that generates larva just give that to your custom ones

 

[Statharas]

I doubt that it's possible. They must spawn 1 at a time when they are built.