I am using the latest version of the Logos app for the iPad.  I am using the iPad 2.  I have NASB95  bible open and a MacArthur NASB commentary open on split screens.  How do I get the two to link ?  In the view settings there is no link option available, so how do I get this Bible and Commentary to link w/o having to scroll them individually?  Something else that is happening is, it is very slow.  I am having to wait a long time just go to the next page. Is this normal for it to run so slow.  Any help would be greatly appreciated.  
Thanks in advance and God Bless!
Arva 