Outboard (and I/O) Twins
It is possible to walk outboard twins sideways. Some do it better than others. With outboards, the benefits of offset are the opposite – the more spacing between engines the better.
Outboards do not experience the propwalk effect that we see on inboard boats. They also have directed thrust rather than rudders since the entire engine rotates with the helm commands. Unfortunately, they are roughly equally effective turning both ahead and astern (unlike the inboard where the rudder does not do much turning astern). So it is not possible to use the same technique.
With outboards, the goal is to direct thrust towards the pivot point of the vessel. Recall that most boats pivot around a point roughly 1/3 of the way back from the bow while going ahead, and about 1/3 from the stern when turning astern. You’re not trying to pivot the boat – just to push it through its pivot point.
To move laterally to starboard, start with just a bit of left “rudder” and then apply a short burst ahead on the port engine. Just clutch ahead, no throttle.