The properties of an object are entered and changed on the Properties palette. Most properties are directly entered and immediately updated on screen. Some objects have complex properties that are entered on worksheets accessed from the Properties palette.
Worksheets are designed to focus on a particular object-specific task. They display only when they are launched from a palette or from an object.
Opening the Anchor worksheet
A worksheet is a modal dialog box that must be closed before continuing to work in the drawing.