Behemot Editor - c:\Dir\foo.rt [ LayerName ]
LayerName is the name of the layer that is now selected. When you start to create a scene, you will start from layer "default".
The layers are usefull when you work with a great number of objects. No problem, create a new layer and put in this all the object you need to edit. The layers are usefull also to create a group of objects. Follow this:
1) Create a new layer with the same name of the group
2) Add in this layer the objects that you want in the group
3) Use command Layer|Group. The program will create the group and will put it in default layer.
You can open a group with command Layer|Open Group. The program will recreate the layer.
If you open a group you will not loose the trasformation ( rotation, scale, translation ) applied to group. The program will keep an empty group to remember of them when you will want to rebuild the group.