With the latest features in the game to simply pick and choose in the Galaxy map which square to explore, I am using it quite often. The mission system has changed currently and the option to see the Available Missions has been added to the Fleet view.
My proposal is to add the same information also in the Galaxy view. This will let the colonists see from the Galaxy view all the required information to take action. I hope that is achievable and to soon see it in the game.
