The Printers Tab allows the user to configure the Print2XP Client. If you have installed the Client and Server on two PCs the Client Settings such as Printers and Preferences will only apply to the local machine when it is acting as a Client and RDPing into another PC that is acting as the Print2XP server.
Use the Printer Tab to select which printers you want mapped onto the Print2XP Server PC. In the left column is the list of Printers installed on the local machine. Click on the Printer to select it and click the Green Arrow to move it to the right column which is the list of printers that Print2XP will map onto the Server PC.
The Select Default Printer pull down menu will allow you to select which printer from the list will become your default printer in the Print2XP session.