In Ubuntu 16.04 (Unity), I have a shortcut set to change workspaces by holding Super+MouseWheelUp or Super+MouseWheelDown. I'm trying to set up something similar on GNOME with Ubuntu 17.10. However, I can't find a way using Settings, GNOME Tweaks, or the DConf editor to add in mouse buttons as part of keyboard shortcuts. Can anyone point me in the right direction?
Super+MouseWheelUp bound to Workspace Up
Super+MouseWheelDown bound to Workspace Down