The setting for this (IMO it should really be on by default, for reasons I've outlined recently) was not exposed at all. The setting that was shown was a new(?) option in 2.5 which dealt with Ctrl-MMB drag zoom.
The setting for this (IMO it should really be on by default, for reasons I've outlined recently) was not exposed at all. The setting that was shown was a new(?) option in 2.5 which dealt with Ctrl-MMB drag zoom.