Measure 
 Menu
        How to get there
        Click the Measure tool   .
.
        What it does
        This menu allows you to control measure numbers.
        
            - Show Measure Numbers. Choose this command to show measure numbers. 
- Hide 
 Measure Numbers. Choose this command to hide measure numbers.
- Reset Number Defaults. Choose this command to revert measure numbers to the default 
 settings.