Are you asking if a child can be in an elementary classroom and have primary lessons entered for them and vice versa?

If so, the answers is absolutely, yes.

1. The child needs to belong to a classroom with the appropriate lessons. If the elementary child was already in a primary classroom at your school, you are done. If not, you can add the child to a primary classroom at your school (just leave the session part blank).

2. Now just go to the child progress page [Children] -> [child] -> [Progress] and switch to [Primary] on the top right. You can see and edit Primary lessons here.

Or were you asking something else...?