This actions opens the document directly in the MS Office application on your PC. If a document is not supported by NavSherpa, the Open in App action will be greyed out.
This action removes a document from the tree. If the document has been sent to SharePoint, the document is deleted from SharePoint. The Delete action is available for documents which have not been sent to SharePoint, or for documents which have been sent to SharePoint and General (FastTab)/Allow Delete Records On SP is enabled.