Q: How do you place buildings?
A: Settings > Interface > Interaction > Turn on Pick ghost item if no items are available.

Q: How do you control the biters?
A: https://mods.factorio.com/mod/Unit_Control/faq

Q: Why is the spawning rate so slow?
A: The engineers wouldn't have a chance to propperly defend themselves early game.

Q: I can't create biters in spitter spawners.
A: This is still a work in progress. Try to find a biter spawner by going in and out the HIVE.