DM Tool: Favorite/Campaign Monster List

I would like Campaigns to have a curated list of monsters that is invisible to players. Implementation: - As the DM, I would go through the Compendium and when I see a monster, click an "Add to Campaign" button. - In the Campaign screen either the list would be there (visible to DM only), or a link to the list would be available - The list would be sortable by name, CR, type, and location. - Clicking entries on the list would take me to that monster's information page - Ideally, this list would integrate with the encounter builder (filter by Favorite/Campaign monsters) I am running an Underdark Campaign, and find myself reading monster info and planning to use them, then forgetting their names when it comes to actually put an encounter together. A list of "My Monsters", "Favorite Monsters", or "Campaign Monsters" would be a HUGE help.