Help me implant Multi-DB

I am facing some problem implanting the multi-DB. I have access to WHM in cPanel. I have created the 16 database with sql. but they are not adding in cPanel. I have waited 2days. I can see them in phpmyadmin but I can’t find them in Manage Databases in WHM. Another thing is what is the role of move-blogs.php? I didn’t get this part…