General Rules

New nodes are created automatically during bar definition. Bars created based on existing nodes will not generate new nodes.
When a bar is deleted, its nodes remain in place.
When nodes and bars are determined, supports, sections, loads, or other features must be defined and assigned to them. It is possible to invert the order of properties selection in the design process.
A bar type may be assigned while defining the structure.
The UNDO option may not work with some edit operations.