When you draw or measure objects (lines, circles, arcs, etc.), these objects have default properties, such as colour, pen width, line type, etc. These properties can be defined in the Properties window. The Properties window displays the default properties with which new objects are displayed. If an element is selected, the Properties window displays the properties of the selected element. If you want to change the default properties, no element must be selected. It is indicated by the text “Drawing” in the window.
When an element is selected, it displays the properties of the corresponding element. Here is the example of a line that is marked. If you make changes in these properties, these immediately affect the selected element.
If you have selected multiple elements, then the window looks like this. Changes in this area now affect all selected elements.