Hi JohnT, thanks for the reply!
I did not know that pressing enter mirrored iTunes. I don't mind if that remains, but would like to be able to change it on my end if possible.
What I was specifically referring to was more along the lines of helping users get that uniformed Mac "feel" and "look." Most if not all Mac apps have the preferences set under the app name in the menu bar and can view it by pressing "⌘,". Additionally, users can change most menu commands if they go to System Preferences and open "Shortcuts" under the Keyboard preference pane.
Right now I can't change any of that though, even though I tried. And hence my post here.