Assigning Ground Templates to Ships

My colony on Luna is growing out of control, and I'm constantly sending new Ground Units to stabilize their political situation. I was looking for a way to streamline the process, as it involves a lot of creating new orders, and I noticed that my troop transport ship has an option to "load assigned ground templates."

This sounds like exactly what I'm looking for, but I can't figure out how to make it work. Does anyone know how to assign a ground template to a ship?