The Collection features are disabled to not registered Kindle, I'm not in range the whispernet I have de Kindle DX (U.S. Wireless) Serial no. prefix B004
I've done the update to 2.5, but I guess is necessary
usbnetwork
to register and use the Collection new feature!
To create a collection:
1. Select "Create New Collection" from the Home screen menu."for me are disabled"
2. Enter a name for the collection.
3. Select "Save" with the 5-way controller when finished.