it's possible by default. Region limits only decoding, validation, conversion and aplying values. By default complete view root encodes on the last phase. And you may set controls outside the region to be reRendered.
And only if you set renderRegionOnly to true - encoding will be limited with the region also.
But the problem is if i dont limit rendering to the region with renderRegionOnly to true, the whole page is rendered
I need render only the controls inside the region and sometimes other specific controls outside not the whole page.
Thanks for your reply.