The screen is where you manage staff accounts.
To add new staff for your school, you can load or import them in advance, or you can simply let staff sign up themselves. Either way, they choose their own usernames and passwords, so you do not need to assign them.
To remove a staff account from your school, click their name on the screen and click the "Remove" button. If the user has no classes, they will be removed immediately. But if they are a teacher with classes, it will archive their old classes so you can always look up old grades. In this case, the teacher will be listed as "Archived" and can no longer access your school, and their classes will become inactive. To actually delete their classes, you must go to the Schedule Sections screen and delete the classes one at a time (the teacher will be completely purged 14 days after their classes are deleted). To remove staff from multiple schools you must repeat this for each school.
If you have a group account, but you want to include only certain teachers, click any other teachers then click the "Exclude" button. This does not remove them or do anything harmful to their account; it just means they must pay for their own account or use the limited free version.
To correct a staff member's name or email, click their name on the the screen, then click "Edit User Info". This also lets you change their username and reset their password (you do not choose a password; it simply sends a link to the user's email address to reset their own password).
Also you can edit the Code for each user, which is used only to match data with other software when importing/exporting data. Leave this blank if not applicable.
If a teacher is leaving in the middle of a term, you can either reassign their whole account to a new teacher, or reassign each of their classes to other teachers.
To reassign the whole account, go to the screen, click the staff member, and click the "Edit User Info" button. Change their name, email, and username, and click the button "Reset Password", which sends a link to the new email address so the teacher can choose a new password.
To reassign the classes to other teachers, go to the screen, click a class, click the "Edit Section" button, and change the Teacher menu.