* Add a command that creates multiple Arch Structure objects from a selected base, using each selected edge as an extrusion path. It creates one Arch Structure object from each edge. Therefore, the Arch Structure objects can then be individually edited if needed.
* Split the command Arch Structural System from Arch Structure. For backwards compatibility, the command Arch Structure will run the command Arch Structural System when the requirements for the Arch Structural System (Structure + Axis) are met.