Love the centre of mass idea, allows me to place the rockets where they will have the right affect!
I Have recently been playing with the decouplers and having autonomous drones that I can drop to just get on with things. The problem is, I am unable to find the centre of mass of either my "main ship" or any of the individual drones. I have had to resort to making copies, removing the drones, changing the drone and then going back to the original and making the same changes.
TLDR, Can we be able to select a group of parts and find their centre of mass, not just the centre of mass of the craft as a whole?
