Eaves and roof returns...

[Chad Cardin]

Ive been reading this great book I bought a while back called "Get your house right" by Marianne Cusato that demonstrates true architectural details for residential design. I was trying to demonstrate her examples of proper eave and roof return building in chief but noticed that chief doesnt seem to be able to do some of the details in these two areas. Has anyone read this book and know what type of 'proper' traditional eaves and return details Im speaking of?

One example was changing the slope of the roof returns even if its different then the roof slope and I noticed that I wasnt able to do this. Another example was creating sloped coronas that terminate into horizontal coronas on gables/roof returns, I also couldnt recreate this example. Does anyone have any experience with traditional eave details or have read this book before? Im curious how you create these details in chief.

Thanks!