With the new firnware 218-r11 you will be able to setup 8 portals/server/URL.
That works on MAG 250, MAG 254, MAG 275, AuraHD International SE very good.
INFOMIR is selling these boxes only with that nice Inner Portal.
You can use also free and pay-URL to look TV or hear Radio stations.
Your MAG 254 acts like a workstation: You are inserting an URL, rebooting the box and after starting that Portal your MAG 254 connects with that Server and you will see the Stalker Middleware for the first time.
Manfred