I am fairly new to the game, currently playing on version 0.90. The 2 things that i don't understand are: 1. My rocket path displayed on the Map is always GRAY and i cannot place any maneuver nodes on it. 2. I've watched some videos and the players are building enormous rockets, while i am limited to 18t mass and 30 parts, i upgraded the launching pad to level 3 and yet that's the maximum. Please help me and thanks in advance.