Here is the way I have found that works on updating edges on changed stacked roof surfaces.
AC 10.10
1. pointer Icon selected
2. select first roof surface
3. hover mouse to highlight current roof (roof Lines must change to color of "Highlight selected elements' surface" NOT "Highlight element contours before selection"
4. wait for info box to return there is multiple objects
5. TAB once this will turn the opposite roof surface in the stack to the color of "Highlight element contours before selection"
6. Ctrl click stacked edge
7. Repeat opposite edge for final cleanup
To much hovering around with your mouse and waiting for response
This to me is a huge step back in production speed
Conclusion:
Graphisoft really needs to streamline this chain of events
IDEA:
Macro to automate the stacked roof planes by selecting all desired roofs and execute macro.
There could be dialog box that could even have a option to ignore surfaces that are at a specific distance away from each other to control undesired connection cleanups.
Please give me your thoughts and suggestions of a better way.