Hi again, Boni. Ok, here's a quick video showing exactly what to do using the dome you sent me. You almost had it finished. All you needed to do was the last few steps before adding subdivision. Hopefully, you can follow along. I didn't use Screencast keys to record my keystrokes or mouse, but I did incorporate annotations.

The only thing you needed to do was add edge creasing and control loops with the Loop Cut tool. Once that's done, your dome is ready for subdivision surface modifier.

______________________________________

My Store
My Free Models
My Video Tutorials
My CG Animations
Instagram: @luxxeon3d
Facebook: https://www.facebook.com/luxxeon