Question

when i am doing vocals and there are several layers of harmonies and i found the perfect compression settings for one of the layers i would like to be able to copy that instance of the compressor plugin to the other tracks quickly without having to save it as a preset.

Protools has a feature where you can hold the option key and drag and drop the plugin to as many tracks as you want and this is very good for workflow.

Answer 1

If you mean copying a plugin from one track to many, it already works that way for all selected tracks.