OBD U7 - Structural Changes

All the latest changes do for me is confirm, once and for all, that we need a single point solution for structural modelling that all the developers attention can be put into. 

We need a lot more functionality for connection modelling without the need to shop drawings. Maybe split the package into modelling with an extra cost for full shop detailing. 

Either way, the current additions are somewhat disappointing.

JMO.