Delete and move multiple lessons at once

I'd like to be able to delete or move multiple lessons at once instead of individually erasing them. I've rearranged the order of my class and it's really difficult to move them from one month to another without having to delete each one individually and importing the rest. Since I copied the entire planbook from last year, this makes it difficult to move things around. It would be nice to have a "year" view and be able to easily select lessons to move around or delete.