Open a Drawing-model Pair
When you open a project, you can select the drawing-model pair to be activated first from a button menu. Alternatively, you can define a drawing-model pair to be automatically activated without a need for separate selection, see Automatically Activated Drawing-model Pair. The drawing file of the drawing-model pair is opened in the drawing window and the model file in the model window.
You can change the active drawing-model pair while you are working by doing any of the following:
Select from a button menu
- Do either of the following:
- Click the button in then upper left corner of the working window:

 - Press F4.
 
 - Click the button in then upper left corner of the working window:
 - Select which drawing-model pair to open from the menu.
 
Switch to architectural/framing model
Switch to the matching architectural or framing pair of the active drawing-model pair by clicking the button at the top left corner of the working window.
The architectural design drawing-model pair is active (model file MODEL.vxm). Switch to the framing drawing-model pair by clicking the button:

The framing drawing-model pair is active (model file FRAMING.vxm). Switch to the architectural design drawing-model pair by clicking the button:

Select from project document browser
- Save the project. The document browser is updated.
 - Open a branch of the document browser by clicking the plus sign (+) next to a title or by double-clicking a title. You can find the drawing-model pairs of the project under following titles:
 Architectural Design
 Structural Design
 - Open a drawing-model pair by double-clicking the name of the drawing file, for example 
 2nd floor wall layout. 
Click an object
- Select an object belonging to the drawing-model pair you want to activate in the model window.
 - Right-click to open the context-sensitive menu.
 - Select Advanced > Switch to This Drawing-Model Pair.
 
