Windows 7 - Logitech Wireless Mouse: Single And Double Button Click ?

Hello,

I have a Logitech MK300 Wireless Mouse.
Really works well.

Looking at the setup page for it, and they have a zillion options you can set the buttons to do, But, cannot find one for what I would like to set one of the buttons for.

Have a radio program with a large station database.
Clicking on one of the stations selects it, and tunes the radio to go there..

But, it requires a Double-Click of the mouse button .
A real annoyance.
Would like to do it with a Single-Click of one of the buttons..

Anyone have any idea how to set the mouse so that a single button click goes out electrically as if it were a Double Click of the button ?
Don't really care which button would do it.

Thanks,
Bob