The Properties window is used when you need to edit how a visual control looks on the web page.  Each control has several properties that define how it appears and behaves in your web application.  For example, you can change the text on the face of a button control or modify the font weight of the button.  In order to modify a control’s properties, click on the control and then use the Properties window to make the necessary edits.  Click here to watch the video.