Sets menu echo and prompt control bits.
| Type: | Integer | 
| Saved in: | Not-saved | 
| Initial value: | 0 | 
The value is the sum of the following:
| 
 1  | 
 Suppresses echo of menu items (^P in a menu item toggles echoing)  | 
| 
 2  | 
 Suppresses display of system prompts during menu  | 
| 
 4  | 
 Disables ^P toggle of menu echoing  | 
| 
 8  | 
 Displays input/output strings; debugging aid for DIESEL macros  |