Absolutely! After launching the Kiosk on your computer or tablet, click on the "Status" button in the upper right-hand corner. This will put you in "clipboard mode" where you can click on a name and confirm the person is signing in right from here.
Alternately, you can choose "Use clipboard mode if there is just one service open for check-in" in the Web Terminal Settings to default to this mode. Then you only have to click Start to open the clipboard.
If the position is open or a volunteer had requested a sub (their name will appear in yellow), clicking on this spot will allow you to type in the name of the volunteer who is available at the service to fill in for the opening.
Multiple people can run the Kiosk at the same time if needed, and all of the attendance data will be pushed back to MSP 10 minutes after sign-ins are closed for a service by default.