To Create a Custom Command

From the Mac OS menu bar, click Tools menu Customize Interface (CUI) or at the Command prompt, enter cui and press Enter.
In the Customize dialog box, Commands tab, click Create New Command (+).
A new command (named Command1) is added to the Commands list and properties for the new command are displayed in the Properties section.
In the Properties section, do the following:
- In the Name box, enter a name for the command.
  The name is displayed in a tooltip on the Tool Sets palette and used as the caption for a menu item.
- In the Description box, enter a description for the command.
  The description is displayed in a tooltip on the Tool Sets palette.
- In the Macro box, enter a macro for the command.
- In the Image box, click the […] button to display the Select an Image File dialog box. Select the raster image you want to assign to the command, it should be 16x16 pixels