Is there a way to fill in a blank spot on circular map?

[billperrotta]

I have a site where I removed a host.
It looks like if I put another host on that site it would automatically fill in the green piece of the circular pie, on the map.
However I don't plan on adding any new hosts on that site.
I was wondering if there was any way to fill in the blank spot with a green color?
I asked this before and nobody answered. The post even disappeared.
the view is Circular(Marked Up)

[abrist]

Could you post a screenshot of the behavior?