Solo section in string quartet

I have a string quartet where there is a long section of several pages with just cello solo. How do I achieve this in Dorico? It’s contiguous with the foregoing and following music, so from what little I know so far about flows, using a new flow does not seem right, as at least by default it puts all the start machinery at the start of the new music section. Is there a tutorial on this anywhere?

Layout Options->Vertical spacing->Hide empty staves.


Or use Manual Staff Visibility if you only want to exclude the other three instruments for these few pages.