is there any way to add some more identifiers besides ORCID to the author profiles? ORCID is great but it doesn’t seem to be enough. At least we need to add ResearcherID from WebOfScience and Author ID and SPIN ID from elibrary.ru.
Unfortunately, I’m not sure that is currently supported. Have you checked and/or submitted a feature request? It looks like the original ORCID feature was created by a community member, then incorporated into the system because enough people used it.