In version 2.1, "2" and "5" are added as "up" and "down" hot keys, they act like the "up" and "down" soft keys in the previous view, i.e. in articles view, they will do previous/next article; in channel view, they will show items in previous/next channel, if any; in subscriptions view, they will show channels in previous/next category, if any and if category view is enabled.  

Typing an URL on a phone is not something easy. You can avoid this by using the "Import Opml From File" feature in SmartRss: Create an opml file on your desktop. An opml file is just a text xml file with the .opml extension. Most desktop Rss readers can export your channels into an opml file. Drop this .opml file onto your phone through ActiveSync. On SmartRss main screen, select "Menu", then 3 to "Add channel", then select "Menu" again, then 1 to "Import opml file". Select the .opml file, then "Select", then "Go".