When running scripts, which I do a LOT of, all day, I have found it takes way too much clicking to run a script. This should be improved to be more efficient.
Place cursor at search box when opening script selection window
Make search results more compact (too much information and padding)
tab completion of some kind
enter runs the script
With these improvements scripts could be run with only one click (the rest key strokes), and scripts may take less searching as more will be visible initially. Consider using vi bindings like gmail does (ie j up, k down, etc) for consistency.