Thanks much for the detailed, step by step explanation Dave.
I have tried to do the copy and paste within a given file and not copy over that other. But only by using the copy and paste commands themselves. And also to play the files together.
I hav'nt caught on to those importing features.
I can add a file to another with copy and paste, but not tracked into the other.

I just don't understand computers.
I used the computer mainly for student studies when I first started using it and the only thing for software I used or updated is virus protection. I'm surprised I could turn the computer on.
And I still can't get used to the idea with playing rock and using software.
I would only like the sound features in these programs to add, I have never gone file to file in a single computer to playback and record with. I would still do that only sometimes though.