Have been informed that this change must be implemented in gtk rather than Nautilus for it to work.
On macOS Finder after lifting up a file/folder, you can drag it up/down the panel by scrolling your mouse wheel. Useful if you have 1000 files in the folder
In Nautilus can only do it by moving the file/folder to the top or bottom of the panel to initiate scrolling.
Would be very useful to have the OS X behaviour in Gnome.