Model comparison function
This command compares the shapes of 2 nodes.
It searches the parts of unallowable error and colors the parts.
It's very useful when changing the design of a model.
Viewport function
Tiled display is available.
Color selection function
This is a command to make the elements and nodes which color is close to
the indicated color selection mode.
You can handle the nodes and elements as same as the other ones.
It's very useful at topological operation, changing nodes and colors..