Nope it doesn't work that way. Here you go directly from the user's manual.
To load the weapon: First apply the saftey catch by... I'll assume you can figure that out. Close the breach block by pressing the carrier control button on the right of the receiver; then inverting the gun and pointing the barrel downwards, with the left thumb again press this button releasing the carrier whick can then be thrust down by the cartridge as it enters the magazine. It is of the utmost importance that the cartridge should completely enter the magazine until it clicks when the cartridge passes the cartridge retaining lever. Repeat the operation until the magazine is fully loaded. At this point the gun will not fire until a cartridge has been placed in the chamber. The chamber is loaded by retracting the breech block and inserting a cartridge through the ejection port, and allowing the bolt to fly forward which will immediately feed the cartridge into the chamber, leaving the breech closed ready to fire after the saftey catch is released.
End of story. There is no way to manually feed a shell from the magazine into the chamber as far as I can tell.
Dave