There is not an OOTB solution for this. If it’s possible to add a custom event to the CTA using the method that Link details in this article, then you have some options.

That custom event would then be used in a product mapper rule, which means you could use the Feature KPI or Feature Performance widgets to track the CTA performance.

Alternately, if the CTA is a link or redirect within your application, i.e. still in the scope of the PX JavaScript SDK, you could add a query parameter to the link, and use the resulting page view events as the signal source for product mapper, instead of the custom event.

In either scenario, the goal is to trigger a feature match event from the CTA, so the Feature KPI or Feature Performance widgets could be used to fill the CTA visibility gap on your dashboard(s). It doesn’t scale very easily, but it might help in some targeted cases.