First I'd like to ask you to go easy with me as I might take a lot of words to ask a question that you probably think simple, English is not my native language and so I try to give the more detail so people can understand what I'm asking.

I'm a bit new to this software (which is as complicated as fun

So I use freestyler DMX to light stages for (small) gigs and shows. I until now managed to do with what I learnt here and there and by myself but soon I'll need to be lighting a show, where artists will need a bunch of different scenes that I don't know the length of.
I would like to know how I can create a sequence with for instance 4 scenes that I can trigger manually and won't run through the different steps by itself as it does by default.
(to give an instance, let's say I have a RGB LED PAR and I want it to be blue in scene 1, red in scene 2 and green in scene 3 but I don't know how long I want the scenes to last so I want to be able to go from one scene to the next manually. I know how to create the sequence and to put it in the cuelist, the problem is once I'll hit the "read" button the sequence will start and go on with the scenes. I noticed the manual trigger button but is it possible for the sequence to start the first scene and not go to the next without me manually triggering it?)
I already thank you if you take time to answer this.

P.S: Please consider in your answer that I still haven't grasped how to use simultaneously the submaster + cuelist + override ect so what' I'm explaining and asking is propbably not the most efficient way to do it but I'd like to know how anyway.