To access the options hover the group and tap the icon in the right-hand corner.
The options includes:
Add custom url - Opens a modal where you can enter a title and a url of your choice. This creates a new item and adds it to the current group.
Copy content - Copy all content in the group to your clipboard including urls, comments and to-dos.
Add note - Creates a new note/to-do in the selected group.
Move to - Move selected group into another category of your choice.
Delete - Deletes the group and all containing items.