To Reorder Surface Chains
1. Click 
Style > 
Surface to create a surface, or in the Style Tree, right-click a surface and click 
Edit Definition to open the Surface tab for the desired surface.
Style > Surface to create a surface, or in the Style Tree, right-click a surface and click Edit Definition to open the Surface tab for the desired surface.2. Click the References tab.
3. Select the chain to reorder in the Primary reference collector, or select it in the graphics window.
4. Click 
or 
to move the chain up or down the list.
or to move the chain up or down the list.5. If required, select and reorder more chains.
6. Click 
OK.
OK.