I'm posting on behalf of another Pastor here at the church who's running Logos 6.9 on El Capitan 10.11.3 and there is no way to add a Personal Book. The "Add book" button is grayed out (when hovered over it doesn't display the blue link). He did a complete uninstall, reinstall (probably unnecessarily) but the problem is still there. I've searched here and don't see that anyone else has posted about this. Any thoughts?
