Different time signatures for different parts

I have recently been using Musescore to create a score where I would like to use two different time signatures, at the same time, in different parts. In the current version of Musescore this does not seem possible from the Help menu or from other forums in the 'General discussion' forums.
I would be very grateful if you could include a feature that would enable this in a new version of Musescore.
Thanks,
Sean.