Controls whether thumbnail preview images are created and saved with the drawing.
| Type: | Integer | 
| Saved in: | Registry | 
| Initial value: | 1 | 
Obsolete. This system variable has been renamed to THUMBSAVE.
|  
			  Value  | 
 
			  Description  | 
|---|---|
|  
			  0  | 
 
			  No preview image is created in the drawing  | 
|  
			  1  | 
 
			  A preview image is created and saved in the drawing  |