Garden Gnome Software

Here's the scenario...
I have to sets of image nodes for the same place... "before" and "after". Each set is linked to itself... meaning all the "befores" are linked together, and all the "afters" are linked to themselves as well, as two separate tours.

I want to make it so if you're on "before", you can click on a button called "switch to after", and it will take you to the corresponding node, same orientation, in the "after" set.

I tried to accomplish this by creating a button in the skin editor called "switch to after", making its action "on mouse click" to "go to URL" -> "index.html#$(ut)after".
I also attempted this with "on mouse click" -> "Open next panorama" -> "URL: index.html#$(ut)after"

But it doesn't appear to build the URL with placeholders? And, I don't know if it'll transfer the positioning, either.

Any thoughts?

Oh, since this particular tour is binary, I'll be able to make use "next node" and "previous node" after placing each node next to its match, but I was hoping for a more flexible option such as what I was trying to accomplish in case I have a situation where there are 3 or more sets, like "plain", "dressed for wedding", and "dressed for birthday" kind of thing.