To Set the Current Working Model
If a drawing has more than one model added to it, one of the models is always the current working model. Use this procedure to switch current status from one model to another.
1. Open a drawing.
2. Perform one of the following operations:
◦ Click 
Drawing Models in the Document group of the Layout tab.
Drawing Models in the Document group of the Layout tab.◦ Right-click and click Drawing Models on the shortcut menu.
The DWG MODELS menu appears on the Menu Manager.
3. Click Set Model. The Draw Model menu appears.
4. Select the model from the namelist menu. It contains the model names that you have added to the drawing.
Alternatively, click 
on the Model Tree to set the active model.
on the Model Tree to set the active model. | • To highlight the current active model, click > in the DWG MODELS menu. • To return the model display back to normal, click > in the DWG MODELS menu. |