I was playing Tempest earlier and noticed that it had upright or cocktail in the dipswitch settings but no dipswitch exists for it or at least it doesn't show one, so I guess it could be added the same way.
just figured dipswitch settings were only for dipswitches.
Edit: got to stop taking so long to post. never even looked in 'Game Configuration' guess that's where the non dipswitch switches go.