Add Multiple Time Signature per Song

[Alexandrite2000]

There are a few songs that people have made throughout the years that have multiple time signatures. I would like it if you could edit songs to have multiple time signatures so you can go from 2/4 to 5/4 or something along those lines. It would be helpful to make songs like Rush - Tom Sawyer (4/4 to 7/8), Hey Ya! - Outkast (Technically 11/4), and Devil Trigger - Casey Edwards (3/4 to 9/8).