@cfritze64 and @ranger. Sorry we lost track of this question. We had previously checked, in March 2021, and found that Sorted has x-callback-url support for opening and adding, but does not have get selected item.. The Sorted app was later mentioned in How are lawyers using Hook? - #4 by Jafam. I haven’t checked again, maybe they have added support since then.
It would be appreciated if Sorted3 users would Contact Sorted devs with this Information for Developers – Hook. Making an app URL friendly is easy for developers, and great for users, per the Manifesto for Ubiquitous Linking.