When the users select a PDF from the FOLDER list in PDF Preview.
The selected PDF disappears from the FOLDER list and move to the top as ACTIVE.
As a result, the users are unable to determine the position of the last PDF they view in the FOLDER list and unable to navigate to the next PDF.
Is it possible to put some kind of placeholder or leave the selected PDF as a dimmed/disabled item in its original place so that the users know where they are, during the navigation of the FOLDER list.