When copy/pasting a Lumetri effect (or crop effect, etc) to one or more clips that already have that same effect applied, I often want to replace the existing effect in the clip(s) rather than add a second copy of it.
Giving users a new "Paste & Replace" shortcut such as Ctrl+Shift+V so that they can decide on-the-fly if they want to add an effect or replace any existing copies of that same effect would be extremely handy!
If the "Paste & Replace" shortcut is used on a clip that doesn't already have a copy of the effect being pasted, it would simply work as a regular paste (Ctrl+V). If a clip already contains several instances of an effect, then using "Paste & Replace" would remove all previous instances. If the user wants to always replace existing effects by default, they could simply change the "Paste & Replace" shortcut from Ctrl+Shift+V to Ctrl+V. This would put full control in the hands of the users!
Please consider adding this simple little shortcut that would be a big time saver!