The iPhone Shortcut for iBooks "Open Collection" opens the app iBooks where is was opened before (e.g. Read now, Bookstore, etc.), but I would like to be able to specify within the shortcut a certain folder (Library/Collection) which I had created before in order to select any PDF from the list.
First I create a text specifying the name of the desired collection. Then I create a variable containing the above text. When it runs it says "Conversion error. Open collection unsuccessful: The variable could not be converted to the necessary type."