Can I cut & paste ranges of time signature changes

I have a song that has a pattern of a bar at 12/8 and the next bar is 15/8. I want to set the 2 bars up as a range and then cut & paste in the entire song. With no signature track in Elements I would have to open the tempo track and manually keep changing the signature at every bar. This would be excruciating at best. Would I have to upgrade to be able to do this?

Don’t have Elements in front of me, if the limit is as you describe, set the sig to 27/8. But, yes, this is one of the features you get when upgrading.