To upgrade a tee to a cross, you must first add conduit to one side of the tee. 
 Video: Place Parallel Conduit
 Video: Place Parallel Conduit
-  
  Select the tee you want to upgrade. 
- Right-click the conduit control and click Draw Conduit. 
- Draw a length of conduit. 
- Press 
  ESC twice. 
- Select the tee again. 
- Click the plus symbol (+) next to the fitting. 
  The elbow is changed to a cross. 
   
- To change the cross back to a tee, click the minus symbol (-) next to the fitting.