If students forget their i>clicker remote, you can loan one for a single lecture. To associate the loaned clicker with a student for one lecture only, you should perform a temporary or loaner registration.
NOTE: When loaning a clicker for one session, you must first start the session and then select the Loan Clicker option from the Session Toolbar Options drop-down menu.
Loan Clicker window with Register for One Session (Loan) selected
If this option is used, the assignment of the i>clicker remote ID is tied to that student for one lecture only. This temporarily overrides any permanent registration. The student will receive credit for any votes during that lecture and these will be synchronized with existing scores. In subsequent classes, the student can resume using his/her regular clicker.