im not talking about in game, but i game would work too, i'm talking about the web compendium Feyte said: If the DM is limiting the books available, he can turn off access to compendiums they don't want you to access. When they do that, you can search the compendium and it will only list the options that are available. (You will get a notification to let you know there are more options that you aren't seeing, see picture). However, I too would like to be able to search for compendium specific info from books in a game, without having to go into the compendium so +1.