XLForm multi level selectors

I'm working on a very old iOS project that is using XLForm. I have to support a dynamic screen flow such as this attached

As XLForms is no longer on active development, I thought of asking the question here.

I've tried using XLFormOptionsObject and using a formSegueIdentifier to fully go custom but has not been that much helpful. If anyone has experience on a similar type of implementation using XLForms, any advice is really appreciated.

Side question; I can intercept the Screen's C selection on Screen B using formRowDescriptorValueHasChanged, but how do I then manually pass that back to Screen A to update it's value?

---

Screen A - Select Option > (tap pushes to Screen B)

Screen B - Option 1 (tap selected option 1, pops and updates screen A row value) - Option 2 (Same as option 1) - Grouped Options > (tap goes to screen C) - Option 3 (Same as option 1) ...

Screen C - Option 1 from Grouped options (tap selects option 1, pops Screen C & B to go to A and updates screen A's row value) - Option 2 from Grouped options (same as above) ...

from XLForm multi level selectors