Ahh i can't get how to change the UI and i need help...I mean the Menu stuff and the basicly UI

So, where do I start? Why my project failed? Because I didn't had much time, and I focused on other things, I didn't know how long process map creating was, I focused most of my time on helping some people on pm's with map editor. And on studying and learning things. I thinke I've done some good things to community, mostly tutorials but I failed to do my opus magnum here. Because of time, one thing that I wasn't thinking about(when starting project) And here I'm saying that I'm sorry to let some of you with dissapointment about my project, I'm sorry.