I’m making my new rocket Hyperion. I use the RL-10C-X on my upper stage. I want it to be very realistic. I want the pre-ignition fuel purge. I don’t know how to get it to activate. I need it to delay the actual engine start and fire an RCS thruster for a moment, and then light the main engine, every single time the throttle is moved above zero. I’ve experimented for several hours now, yielding nothing. Ughhh!
