I'm not sure I understand how stuff works;)
When detailing in Tekla, like doing precast concrete work and foundation and getting down to the nitty gritty of how to actually build a model. After this is done, you import it back into ArchiCAD and nothing is lost?
How does this work in the practical world when architects hand stuff over to engineers. There is not a single view where both architects and engineers work on?
What if the engineer spots a troublespot. How does the architect go in and look at what he's talking about?
Is interchanging IFC back and forth the way it's done?