If you open a model (‘lgm’) file that was created in a version of LEGION Model Builder earlier than v2.0, it is automatically upgraded to use layers in the following manner:

• All CAD is loaded into the default CAD Layer and marked as imported CAD. The Layer is locked.
• All objects are loaded into the default Activity Object Layer.
• All Focal Drift Zones are loaded into the default Partition Layer.

Within LEGION Simulator, existing ‘ana’ files are also upgraded to use the layer scheme. All Analysis Lines, Analysis Poly-lines and Analysis Zones are added to the default Analysis Layer.