--- Comment #5 from V Stuart Foote <[hidden email]> ---
Sorry, I'm kind of missing why these widgets are even coded with double mouse
click selection/action? Seems like a single mouse click to select, and a
second single mouse click to perform the action would be more consistent with
keyboard navigation and selection actions.
Also, presently single mouse click on the plus icon widget expands/closes the
Keyboard navigation follows <F10>, <F6> and all cursor movments, and selection
is with <Enter>. Expand/Close is with cursor <R> or <L> respectively.
That aside, other than using the double mouse click for selection/action, as
Harold reports the only thing that seems amiss is the double mouse click
opening/closing the lists. We could fix that, of just replace the double mouse
click selection/action with two discrete single mouse clicks.
At least we do have the same behavior in <F5> dialog, or in the Sidebar
implementation of Navigator.