On the Students page, teachers can add students to their roster individually. But the Import Data page allows for an upload of multiple students to multiple rosters at once. You can do this at any time during the year, as often as you need to. Read about how to do this in the article Importing Roster Data Using Admin Tools, and learn how to create an automatic process for this by reading Auto-Importing Student Rosters. And if you need help with figuring out the file format, view our import file creation document.