In case you’ve wondered how to modify already uploaded user control without constantly uploading it through Sitefinity pages, it’s handy to know that Sitefinity creates a “UserControl” folder inside of the website’s root folder and stores there all uploaded user controls . Once you upload your control, you can open the user control file (.ascx) directly from that folder and make any adjustments there. That way, you’ll be working on, so to say, live user control.