Sometimes Projects need to be rethought and a song from one becomes applicable to another. Currently you have to open the song and project it is in, then save the settings for that song in the project. Then in song mode, add the song to the new project and and then load the settings. It would be more fluid to be able to an open project and select a song and go to Song/Add to Project... and it would be copied with all settings to the other project. There could be an option to move or copy the song as well.