Kebeko

Im new using the Galaxy Forge and i have a question.. you know who in the game theres planet occupied by neutral by a neutral colony and you need to bomb the planet. well i was wondering how to i make that to happen in Galaxy Forge, because no matter what i do the planet always appear empty just with a few rouge ships but no population. what im doing is clicking on the planet to edit it Use the "Local Terran Militia Template" (since is a terran planet) Then in group editor