I just got a little bored do NOT go into fullscreen. there is a lot of lag. Also if one of you are a rocket nerd seeing this and thinking "that's not how the exhaust looks in space", i know that, i just have a black background.
Engine power is to turn the engine on and off. You can access engine power by hovering your mouse over the bottom left corner of the screen. credits: this engine is the 'RFA helix: vacuum', and no, it doesn't burn blue, it just looked cool.