Copy and paste doesn't work, and sometimes even moving elements will mess up the programming. It's best to go back to Showtime to make changes then re-import. There are also a few items that don't import correctly, like extreme perspective. Sometimes there are masking issues, and times when animate only frames don't pick up the info from an effect underneath. But those can be fixed with Beyond settings. It is possible to work around almost every issue, and eventually get the show to play properly, but it takes practice to learn where each fix needs to be done.