@Sandy-Nared >> I want to put those parts together to make into one song.
There may be other ways, but I've used the "Copy Objects" and "Inserting Objects" functions for doing this. As long as you keep MusicMaker open, it will hold/remember whatever's on the Clipboard even when you start a new (or different) project. It's cumbersome, but it does work. Is this the kind of thing you're looking for?
Disclaimer: my experience is with Loops in the Arranger. Whether this works with Effects or midi stuff, I don't know.