Using Palette for Harmony of Playing Snippets

Hi,

Is there a way to have a Palette open and by clicking around in it control the Harmony of playing Snippets?    

It would be super-cool if this could be either instantaneous-upon-click, or else scheduled-upon-click (without further ado, such a dragging a Harmony box around before it becomes live).

Or, put it this way, can a Palette itself be "live" for Snippet Harmony just like a Snippet cell that contains a Harmony parameter is?