advice on assault planet (cross post to SEV.com)

[Dogboy]

I'd like my armed ships to attack a planet, but only knock out its defenses, without damaging the planet. After this, I'd like them to move off and engage any armed enemy ships, and I'd like my troop carriers to move in and drop troops on the undefended planet. This seems like a basic need, so I'm sure there must be a way to do it. Does anyone know how?

Also, is there a way to revert all my tactical orders (e.g., "capture planet") back to the default values, in case I've screwed something up while editing them?

Many thanks!
--DB