They are not case sensitive. Layer specifies the layer control element. This element is a pop-up list box that provides control of the current layers in the drawing. Linetype specifies the linetype control element. This element is a pop-up list box that provides specification of the current linetype.
Color specifies the color control element.
Specify a user-defined bitmap with the file name and . You use the menu tag as an index to an associated help file. The arguments are the file name of the original menu, along with the menu tag. The other portion of native help support is the status-line help messages. These are the simple, descriptive messages that appear in the status line when a menu item is chosen.