It is similar to clipboard manager, you can copy the event’s attributes and paste it to the event as OVERWRITE FX or ADD FX without copying the PAN/CROP keyframes.
Using it in Vegas pro 12, but i thnk I run it in vegas pro 13, just disable first some script or extension if you have many (script limitation of vegas pro)
It has also a macro, you can use it if you have a repetitive task