Works very well! I tend to need 'C'ontrol Panels everywhere to make sure everything lines up, but all 3 QD circles on Green make me happy. Would be nice if we could 'Save State' of our progress so we could reload after a dumb mistake, but harsh sim realism is good too. 
Viewing post in Mac feedback and trouble shooting
Yeah, we will keep advertising your Starbase Sim endeavor on every update. You have key functionality down very well, as more functional details are changed/revealed every week. Owe is a great reference, and hopefully we can make more loyal gamers out of our 515,500 members ^_^ https://www.facebook.com/groups/spaceXverse/posts/2857643601207313/
Nice, thanks!
I don't think general saving is necessary at this point (you can save some controller parameters). If stacking goes wrong there is always a short cut and now you can also just put propellant in whenever you want.
I probably should look into having the control panel also just as a menu like thing which you can open and close. The current version is still from the beginning where I only had fixed panels.