If a player owns content, but doesn't want it to appear in charactermancer they need to get the creator of the game to go in and disable it. The DM has enough to do and cant be expected to disable every book they don't allow, including ones they don't own. Not only is there no way for a player to turn off or filter player options, things like spells available aren't even in alphabetical order so looking though to even find what you are looking for is just random. (My issue specifically is with the book Deep Magic since it adds oveer 500 spells that I can't use and floods my charactermancer. without some kind of filter or sort option it makes it so hard to browse spells that charactermancer isn't worth using.)