Alright, here is a though one!
Been wanting to play "mission control" type multiplayer with a friend; that is one person is locked in IVA (or outside camera without the HUD) and another one reading and planning the mission from the ground.
I've been doing my homework and currently using those on KSP 1.4:
Telemachus
Houston
kOS
kRpc
Those work perfectly, don't take me wrong, you can do basically everything that you'd ever need to, but they have one shortcoming: they are not "visual enough". It is really hard to "see" and edit maneuver nodes, and you don't get many of the goodies that you can get from the stock map view (and some other mods like Trajectories!).
So I've been stratching my head to find a solution... There was an old mod which doesn't work anymore, called "Standalone map view". Another hacky solution that I thought about was to use a multiplayer mod like Luna or Dark multiplayer to have the two clients controlling the same vessel, this way it'd be possible to have access to the map view and nodes editing, however it seems it can only be done in spectator mod.
Has anybody who already tried this found a solution?