Hello Sketchupers!

First post here for me ever, I'm currently working as a 3d-modeler for a company in Sweden and I've been on it for soon 2½ months.
With that said I've tried to learn everything by myself now for 2½ months, so I'm still quite new to sketchup.

But I finally have come to some struggle and i tried to look around for solutions, but unsuccessful unfortunately.
My problem is that I got a dome-shaped object which is not entirely domy(Jokes aside) and I need the sloped side to the top to be more round without having to raise the top a few MM just to round the top of that(which also does not change the fact it won't look right).
I'll insert a picture for better understanding my situation(I hope).

The reason I post here is because I'm not to familiar with forums and such,
and for that I use your "Round Corners" ALOT! Kudos to that plugin.
I'm also sorry if I posted in the wrong forum.

I hope I didn't make this to complicated for you guys to understand and I thank you in advance.

//Max