I am experiencing strange behavior in the 3D view when pressing the ‘3’ key. It displays a ‘Red/Blue’ stereo effect, even though the Stereo Viewing option is set to ‘No Stereo’. Why does it still show the ‘Red/Blue’ effect?
I think if you define your custom shortcut, it overrides it but not sure… You may want to open an issue in slicers github repo (or better yet) make the change and submit a PR. Given that it is undocuments (as far as I can tell), it will probably be approved.