Can Sims walk spiral stairs made with modular stairs? Any plans to support this?

I've tried this myself many times.  It's usually because the first stairway butts into the top stairway/ceiling, essentially blocking the Sims from stepping onto it.  That's why just moving and angling the staircases doesn't work- it runs into itself since the stairs need a specific height and cuts into the ceiling.  You could possibly make it work if you use a higher wall and just kind of play around with placement.