Is it possible to add custom attributes as condition for plan view for filter of grouping?

   When we created product backlog, sprint backlog or release backlog there is a way to customize view. i.e. you can add some filter there. We can add custom attribute in eclipse by using configuration data->Planning->Plan attributes->Attribute Mapping->add custom attributes.

   However, we noticed the custom attributes we added here did not show up in options of Grouping. It only show options for default attributes such as category/folder/iteration/owern/planned time/priority/tags/teams.

   

   Do we have a way to add custom field option for the grouping? 

   Thanks!

Best Regards,

Jane Zhou