Yes, place you colony, colony base, terraformers mc and pc ships all in the same fleet. Move to the planet and colonize, if your terraforming I think you have to wait until the following cycle to terraform mc/pc etc. But, if it’s going to be a colony: colonize, install base and build out your bases, if you have starliners with pop or mu’s in the fleet drop them down as well. You can even trade at the planet before the turn ends if you can manage it correctly.
Trade Fleets: You can have different types of cargo in the fleet, just not on the same ships! If you have a merchant fleet which will hold 500 cargo and it is loaded with terraformed goods at the end of the previous turn, go sell to colony, sell, sell, sell etc to all your colonies, then go buy, buy, buy from all your colonies. Move to a terraformed planet and sell the goods, if it is more goods than your planet will buy move to another terraformed planet and finish the sell. Lastly, BUY from the terraformed planet, it will set you up for the following turn.
If you have special cargo mixed into your merchant fleet just remember: If you have 100 cargo ships with 5 cargo each=500. So if your using 90 ships to carry colony/terraformed goods=450 you only can carry 50 special goods. If you carry 51 then you need another ship, which will reduce your colony goods capacity to 445, you cannot mix cargo on the ships.
