Mmmh, is the "shift click" to apply to all not good enough? What do you need that feature for? The easiest way would be to drop a custom script into the wacro folder that when clicked changes the scripts on the wacro buttons so that you can use shift click to apply to all (if that's implemented in the wacros...) (I'd also suggest to mail e-frontier that they make shift clicking work on the user defined scripts ;-))