Lists the attributes that are plotted in the drawing frame, as well as the attributes
that are available to be plotted. The software opens this dialog when you click Add / Remove Attributes 
on the Drawing Setup Tool vertical toolbar.
Available
Lists the attributes that you can select to plot on the isometric drawing.
In Use
Lists the attributes that are currently selected for plotting on the isometric drawing.
Add
Moves the selected attribute to the In Use list.
Remove
Removes the selected attribute from the In Use list.
OK
Closes the dialog, and returns you to the Attributes page. The attributes that you selected are displayed in the Attributes window grid area.
Cancel
Closes the dialog without making any changes to the grid in the Attributes window.
The Available and In Use lists are standard multi-select lists, allowing you to select one or more attributes.
To select consecutive attributes, select the first attribute, press and hold down
the SHIFT key, and then select the last attribute. To select nonconsecutive attributes,
press and hold down the CTRL key, and then select each attribute.