Pneumatics HELP

[chriz4gx]

So Today I programmed the compressor(Everything is set up by the tutorial provided by team 358,I provided the Vi) and I had a few questions. First, I noticed that when I press the trigger on Joystick one the compressor began to compress air is there a way I can automatically make it compress air until it gets to 120Psi by itself. I only want to use the trigger to control the Solenoids to push the piston forward and back. Also, I had problems programming the solenoids.Since were connecting the solenoid to a spike and from their to a relay on digital sidecar I had to program relays and I wasn't able to connect the triangle(with the True/False, and Question mark) thing to the RELAY SET VI, I would always get a little red dot on it, So I know something is wrong, how do I fix it? Thxs