The "views" ('saved' and 'shared') are very useful, and there are a variety of ways to improve and enhance them. It would be good to have a separate 'ideas' category for 'views' instead of having to stick them all under "Features" (which is getting a little bloated with ideas that span a wide range).
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You are able to customize your Ideas portal categories. See the last section of Create a submit only, private, or public portal.
Configure idea categories
Use Idea categories to organize your ideas. They allow your users to specify what category their idea belongs to and allows other users to browse through the categories.
Categories are configured per product under Settings -> Product -> Configure idea categories.