The Caption text is taken from the Scale Description property. By default, Captions are visible. The Caption property can be especially useful if you are viewing multiple scales.
To change the visibility of the Caption, right-click on the main window, click Caption and Visible. If Visible is checked the Caption will appear. When it is unchecked, the Caption is not visible. The Visible property affects all display Captions.
You can change the font and the text size of the the caption. This feature might be useful if you are looking at the display from a distance - across a room for example.