If Your services are provided in multiple locations then You can set the services up in both points of sale or either one separately. 

To manage services please click on the service name and button "Manager service in points of sale". 

To set the service up for sale in the point of sale, please click the button active in column "Available in POS".

In order to see all the services that are available in Your service provider's account, please empty the search bar under column "Service".