You can create areas using 2 methods:
To create an area
See About Area Plans.
To omit a tag when you place the area, turn off this option.
If you place an area inside area boundaries, it expands to the extents of the boundaries. You can also place an area in a free space or one that is not entirely bounded, and then draw area boundaries later. The area expands to the boundaries.
To make the area visible in the view, click View tabGraphics panelVisibility/Graphics. On the Model Categories tab, expand Area, and select Interior Fill or Reference (or both). See Override graphic display of element categories.