moving index cards

I’ve been using Scriveners awesome new corkboard more or less as a binder, moving index cards around and adding new ones as I go — All of a sudden I can’t do this. It won’t allow me to move cards around or add new ones. I must have accidentally changed a setting. Can someone point me in the right direction?

I just posted a message to another of your threads that might be the answer. Check the header bar above the corkboard, and if it says “Multiple Selection” you won’t be able to move things around or make new items. Make sure your binder selection is wholly comprised of container items and no single items mixed in.