I would like to request for a feature related to the time of password used.
1) The user should have an option to request for certain time, in case, they want to extend, it has to be mentioned. "The said password is set to use for 30 minutes from the time user checks-in, if you want to specify the duration, please specify" This would help the administrator to request an extended time if required.
2) The password manager should have the authority to accept or limit the time to default 30 minutes, at the time of approval
3) If the password is not checked in after the specified duration, it can mail the user and the password managers to notify the same, and to reset the password after an additional 5 minutes. So they can complete the work and request the password.