I've beaten the game with all four characters and now want to play Portals of Praevus. I've copied the necessary files from the cd I have and added -portals to the end of the command line of the shortcut target so that I can play either the old or new campaign in Hammer of Thyrion.. But whenever I try to add the new shortcut to the executables on 'Manage Installation', it just adds the H2GL.exe file, not the shortcut I selected. Unless someone can tell me how to make it so that it does, I'll have to double-click it shortcut in the folder whenever I want to play the game instead of clicking 'Play' in Gog Galaxy.