Hey :)
I also struggle so now and then with adding new time signatures in Logic. I am currently working on diving into it some more and figuring out some tips and tricks - if I have some, I'll let you know through Discord!
Ah, you're right. I also get a lot of tracks when I use an electronic drum kit. I never noticed that until a few days ago. And I understand that color coding isn't in your system yet. That's why I let Logic automatically set the colors of all tracks to be different. It helps me not only distinguish between tracks, but I can also select multiple tracks and open them in the piano roll editor, and the notes of the different tracks will be colored by the track color! (At least, if you have set the colors to show "region colors" instead of the default "velocity colors"!)
Of course, I am new to Logic, and that means that I am very eager to look into every aspect of it. I write everything down too. So I might send you some useful tips soon, when I have something concrete to share :)