I've always removed old URL's in portals like this: Go to inner portal, select system settings, select servers, then portals, then scroll to portal you want to erase: Then I just use the Back button (upper right from "o.k.. button, & keep pressing it erasing one letter/digit at a time until all gone. Then press o.k. and it should be gone...! May not be the correct way, but works for me.....