It worked in Piwik 1.12 but not in Piwik 2.X
1: go to the "Goals Overview" page.
2: in the "Conversions overview by type of visit" section click on "Custom Variables".
3: Try to expand any of the custom variables to show stats for each value. It doesn't expand.
AFAIK it didn't work in Piwik 1.12, it's a new feature request.
Yes it did, at least with custom variables with visit scope. There was a weird behaviour with page scoped custom variables.
Maybe you're referring to the evolution chart. If you clicked on the /\/ icon, it didn't work, you were able to see visits/actions, but no conversions.
Anyway, thanks for looking into it.
In d575ac12fd74ae42994542814c5eaa96d74fd395: Refs #4490 Allow to get custom variable values by name, in the Goals/Ecommerce reports.