PLS HELP - audio copy when applying effect to an event

I used to have this setting in Cubase, but sinse Cubase 8.5 didnt get all my settings right, I need help
Eg, when copying an audio event and aaplying eg reverse to it, I dont want the original to be affected. I
know there is an option for it somewhere but I cannot find it

Preferences/Editing/Audio/On Processing Shared Clips

Thanks man