@BI_Dev you used the wrong Forum as you are using a screenshot from the WebConnectors this is different from Qlik Application Automation.
But as there is no logic group for WebConnectors, where should you put this QlikView/QlikSense? @J_Lindberg could you get someone to create a Qlik WebConnectors group ?
Regarding your question, first use the (S)FTPListFilesAndFolders
Determine what files there available for download and determine the correct one to use as a variable in the connector (S)FTPDownload