[tshering]

I upload here two scripts that start Cool Reader without using Kobo Launcher. Kobo Launcher (or at least the part that contains the Cool Reader) must of course be available on your device.

Copy the two script from the archive to .kobo/kbmenu/scripts and select "scripts" > "cr3.sh" or "scripts" > "cr3 landscape.sh" to start the Cool Reader in portrait and landscape orientation respectively.
I will include these two items as an option into the main menu of the next version of the Start Menu.

Edit: I faintly remember that I uploaded these two scripts (maybe with different names) already somewhere at the Kobo forum, but I cannot find them now. They are exactly the same as those posted here. Therefore, if you already have them, there is no need to upload the new ones.