There are certain scenarios where you don't want your users receiving assignments within the queue. Whether it's vacation or an extended time away from the office, you can manage that easily via the Gradient Works Queue Users Page.
To get to the Gradient Works Queue Users Page, check out this link on how you manage working hours of your users.
Similar to how you set working hours, you can set whether you want your user to be available in a particular queue. In order to set an user to unavailable follow the below steps:
1) Status-> Select Unavailable
2) Select how long they will be unavailable.