On the Product Custom Table page, it would be useful to add a column for the object (Initiative, Feature, etc.) that the custom table rows are associated with. This would help make the page more useful for bulk, in-line editing. As-is the user doesn't have a way to see which rows apply to which features, for example, without clicking on the link to the detail window per row.
Thank you for the idea. This is possible today. The status of this idea was out of date.