Sets units for all dimension types except Angular.
| Type: | Integer | 
| Saved in: | Drawing | 
| Initial value: | 2 | 
|  
			  Value  | 
 
			  Description  | 
|---|---|
|  
			  1  | 
 
			  Scientific  | 
|  
			  2  | 
 
			  Decimal  | 
|  
			  3  | 
 
			  Engineering  | 
|  
			  4  | 
 
			  Architectural (always displayed stacked)  | 
|  
			  5  | 
 
			  Fractional (always displayed stacked)  | 
|  
			  6  | 
 
			  Microsoft Windows Desktop (decimal format using Control Panel settings for decimal separator and number grouping symbols)  |