Any Clippboard, including subClippboards, can be moved.  To move a subClippoard to reside under a different top level Clippboard, choose your subClippboard from the menu on the left, then click the Edit button at the top of the subClippboard and choose Edit again.  Use the Set as Clippboard menu to select a new top level Clippboard.


You can also change an existing subClippboard to be a top level Clippboard. To do so, choose your subClippboard from the menu on the left, then click the Edit button at the top of the subClippboard, and select Edit.  Use the Set as SubClippboard menu to choose Top Level (it's the first item in the menu).