curved roof into wall

[Anonymous]

I would like to curve the upper portion of a roof into a vertical wall (of a cupola) using the same materials. I have trouble controling the shell tool and was looking for suggestions on the best way to do this. Thanks for any help with this :?:

[Anonymous]

Thanks. I'll try it. Thanks for your efforts too. I will post when I get it done.

[Anonymous]

closing in on it. Thanks for the help.

[Dontknow]

Nice.
Complex structure.