Here is the other type of O31 switch I spoke of. This one is an interesting switch, it's a compact version that can be used in switch yards, or expanded with the included add-on sections to the dimensions of a standard O31 switch like the 022. Let me know if these pictures are sufficient.
I got the ruler backwards, but you can see the switch is 5.5" wide here, including the lantern section.
Note the straight section is just over 8" long without the extension, with it, it's the standard 10" length of an O31 straight track.
This curve extension makes the curve the standard 11" length of an O31 curve.
Here's a measurement straight across the curve without the extension.
Here's the switch with both extensions installed. This makes the track part the same size as the 022 switch, obviously the lantern section is still different.
Here is one of the interesting parts about this switch, and one that I plan on probably using in my switch yard. you can cut off the lantern section totally, all you lose is the indication of switch position. Since you also get that remotely from the control switch, that's not much of a loss. Cutting this off and also using the short curve section allows you to have closely spaced tracks for a switch yard.