12th January 2017, 1:44
Am now Closing this thread.
Back over in the Vivaldi forum, one user found a way to disable the middle-click paste, & a few others then tested & verified it worked. However, with that disabled, the middle-click function did not magically then begin initiating any autoscroll function at all. Given that was my primary interest, & given this question has now been resolved in the negative, there's no need to continue with this Maui thread open.
Back over in the Vivaldi forum, one user found a way to disable the middle-click paste, & a few others then tested & verified it worked. However, with that disabled, the middle-click function did not magically then begin initiating any autoscroll function at all. Given that was my primary interest, & given this question has now been resolved in the negative, there's no need to continue with this Maui thread open.