ShivaShambho

I keep getting prints that are travelling through an open circular area that is in the print. This causes some artifacts and sometimes stringing through what would otherwise be an incredibly clean open inner cylinder. I've tried the 'do not travel through parts' setting and it doesn't' seem to change anything because this area is probably not considered the 'part'. It seems to assume because it's the empty space within the circle it's fine to travel through because it's not the 'part' but it my case the smoothness of this inner area is extremely important. Is there a custom way to achieve this or maybe a plug in?