Reference: Server_List Servers
Server_List List
Server_List Folders
Server_List commands may be static or dynamic. Static lists are created using the Servers type. This variant declares the list contents directly in the script. The End_List command terminates this type of server list. Dynamic lists are created using the Server List and Folders types. These variants load the server list from either a disk file or the address book, respectively.
Servers loaded in this manner will respond to the %RN wildcard without the list being explicitly mentioned in a server name field.