Zoho Books Packages - List View - Customize Column - Can't choose custom fields?

Zoho Books Packages - List View - Customize Column - Can't choose custom fields?

I need a handful of custom fields in Packages, but there is no way to show the values of custom fields in a List View report. You can create custom views and define criteria using the custom fields, but you can't view the fields themselves in the list view.

Please let me know I'm missing something, this seems more like a bug than it does a new development request???