To enable or disable additional section planes
- Click Sectioning Tools tab 
Mode panel 
Planes 
.  
- Click the Current Plane drop-down on the Planes Settings panel, and click the bulb icons next to all required planes. 
When a bulb is lit, the corresponding section plane is enabled and cuts through the model in the Scene View. 
 
 Note: If you want to move all planes together, you can link them. Otherwise, you can only move one (the current) plane at a time.