Use this procedure to change the size of the mass group marker by editing its display properties. 
- Double-click the mass group you want to change. 
 
- On the Properties palette, click the Display tab. 
 
- Under the General category, for Display component, verify that *NONE* is selected. 
 
- For Display controlled by, select This object. 
Note: To apply your changes to all mass groups in the drawing, select Drawing default setting. 
  
- If necessary, expand Object Display Properties 
 Advanced.  
- Click the value for Marker size, and enter a new value. (Alternatively, you can click 
 and specify 2 points in the drawing area to set the new size.)  
You can also access and modify the marker size property through the mass group’s context menu, as follows: 
- Select the mass group, right-click, and click Edit Object Display. 
 
- In the Object Display dialog box, click the Display Properties tab. 
 
- Select the display representation where you want the changes to appear, and select Object Override. 
The display representation in bold is the current display representation. 
  
- If necessary, click 
.  
- In the Display Properties dialog box, click the Other tab, and then change the size as needed. 
 
- Click OK twice. 
 
Note: If you set the marker size as zero, the marker will resize automatically to stay the same relative size on the screen, independent of zoom.