This form is called from the Draw - Dimensions - Automatic tool.
Automatic Dimensions
Choose the options you wish to be used:
Overall dimensions
Switch this option on to dimension the extents of the design (drawn to the left and below the design).
Main Dimensions
Switch this option on to add the dimensions (horizontal and vertical only) of the main panels; you can choose where these are drawn using the pulldown lists: Above, Middle, Below and Left, Centre, Right.
Linear Dimensions
Switch this option on to dimension any small horizontal and vertical dimensions plus any diagonal lengths.
Angle Dimensions
Switch this option on to dimension any entities not at 0, 90, 180 or 270 degrees.
Radius Dimensions
Switch this option on to dimension any arcs and circles.
Settings
From the pulldown list choose the required Dimension Settings to use.