Teachers can each take attendance which will prevent selecting students that are absent when sending Coins or Quests. Attendance allows teachers to send coins without worrying about removing absent students. For example, the "Select all" option on the Send page will select only the students that are present.
Absent students are grayed-out. You can use the 3 dot menu on each card to toggle their attendance status for quick changes.
To take attendance...
locate the Attendance option on the Students view. Click students to toggle their status between Present and Absent, the Save.
*Attendance is stored for 24 hours, then expires.
*Attendance is not shared between teachers and is not stored permanently.
IMPORTANT:
CritterCoin attendance does not keep persistent records. And one teacher's attendance settings do not affect any others. Attendance is only used to determine who is currently present and can receive sent coins etc.