Feature request - A 'Mirror' or 'Reflective' Warp

Hi

Could a new option be added to the Warp tools? A 'Mirror/Reflection Warp', which works with a centralized plane and you adjust/warp one side of an object, the opposite side will also be warped exactly the same? For example, changing the shape/profile of a bottle – rather than having to set up lots of guides to try and manually warp evenly on each side, you make the adustments to one side, and the opposite side automatically mirrors what you do?

Or is there a way to do this already?! (I've not found it yet!).

Thanks
B