Roof accessories one more time

[Anonymous]

I've been searching thru forum for some particular answers but with no luck, so:
- when using roof accessory "standing seam" metal plate I found that when changing roof shape the covering updates first time only, after that it seems to be not active any more
- also 2D view doesn't reflect the actual stage (ribs distance/position)

Can anyone confirm that? Thanks.

Edit:

Forgot my original question : How to align the covering with the origin of the roof?