What would you like to be added?

A support for Principia, including reading predicted(purple)&historical(yellow)&planned(dotted line) orbit info, creating manœuvres, and conducting manœuvres (burn, and shut off according to the codes)

Why is this needed?

Nowadays, Prinipica has become an integral part of the Kerbal Spce Program Mods as it introduce n-body gravity system into the game and thus providing a more realistic gaming experience. At present, MechJeb can already read Principia manœuvres and conduct manœuvres.