Question

I would like the ability to drag an effect from my browser onto an event

Which would automatically add that effect to the EVENT FX for that event.  

AS OPPOSED to having to use a shortcut to bring up event fx or using the inspector, enabling event FX and then dragging or using the down arrow or plus sign and finding the effect.

This would also allow me to drag event FX from one even to another by dragging the effect from the EVENT FX info pane to another event.

Answer 1

It's already there.  Use the Alt or Opt modifier.