Agreed! This would be especially useful for those of us who have purchased a third party book such as Kobold Press' Deep Magic, want access to it in the compendium for the sake of putting unusual spells and magic items in the game world, but don't want those extra spells mucking up the charactermancer for the players. Edit: Warlord, I beleive the Suggestion is requesting a finer degree of control than what is currently available. Right now, if Compendium Sharing is turned on, the GM can choose which sources to include or exclude from the compendium for both the players and the GM . The Suggestion is that the GM should be able to share the compendium with players, choose which sources are available to players in-game, and, separately, which sources are available to the GM in-game.