Hi 

The following link will explain how to manage the lock/unlock fonction on your machine: 

Tool used Verify https://verify.trackunit.com/

https://help.trackunit.com/en/articles/148743-how-do-i-remove-auto-unlock-and-reenable-the-lock-unlock-feature-with-new-units-in-verify
 

Once you have locked the machine you will have configured the unit to use Lock/Unlock fonction, you will also be able to use it from Manager Classic : https://help.trackunit.com/en/articles/149717-how-do-i-use-the-lock-unlock-feature-in-manager-classic
 

Hope to have answered to your question and please do not hesitate to get back to me if needed.

Wishing you a nice day !

BR

Loris