Clear Non-Essential Content from your Child Sites

MainWP Maintenance Extension allows you to:

1. Delete post revisions
2. Delete auto draft posts
3. Delete trash posts
4. Delete spam comments
5. Delete pending comments
6. Delete trash comments
7. Delete tags with 0 posts associated
8. Delete categories with 0 posts associated
9. Optimize database tables

To do that go to: MainWP > Extensions > MainWP Maintenance Extension and on the RUN NOW tab select your maintenance options, wanted child sites, after that click the Perform Maintenance button: