Merging Classes for multiple levels

Ability to merge/combine classes for different levels happening at the same time, with the same teacher/in the same room without having to create separate classes for it to be a combined roster.

Example: We have some Ballet 3 and Ballet 4 classes that will be meeting at the same time, in the same room and with the same teacher. Instead of me creating a separate class with the name Ballet 3/4, being able to combine the classes for that one day without affecting the other days would be great.