The Temporary servers role defines which hosts on your Service will be used for temporary servers for the chosen gametype. The number of temporary bookings that your host will accept before allocating temporary servers to another host in the infrastructure is calculated by the CPU value of the host you are assigning a temporary role to.
For example, if a Host has a CPU value of 1700, and a game has a CPU value of 700 for a 24 player server, it will allow two concurrent bookings on that host before allocating further bookings on other hosts. For this reason when using servers in Temporary roles it is crucial that the host has a relistic CPU value entered (see Add a New Host Page for more information on hosts).
To assign hosts temporary roles for the selected game, simply select the host from your host list and it will move into the available pool for that game.