Conditional Cross-References
In InDesign, is there a way to add a text condition to the cross-reference definition, or is Best Practice to create two cross references and apply different conditional text markers to them after-the-fact?
I'm trying to single-source a POD and an EPUB for a client (and believe me, this is not easy). The POD Xref includes a page number and the EPUB does not (basically, but there are additional small differences, too). There are a lot of Xrefs. It would streamline things to just pop two different Xrefs into the text stream and have the POD/EPUB condition automatically apply.
I know that there are programmatic things that can be done in the Xref definition, such as including a text limiter, but I haven't found anything about applying a condition.

Thanks as always to the community for any help.
-j
