Since FlatFrog Board version 1.3, you can do more on each board page.
Tap the thumbnail of your current board page (seen with a green border and present green menu button with three dots) to present the menu.
Here you can
- Duplicate the board page
- Copy the entire board page to the clipboard
- Paste images and other things from the clipboard
- Go into the background layer to edit it
- Clear the board page
- Delete the board page