In my FIELD RENAMER processor my input 6 columns looks  like (1'result.name' , 2'result.adress.street' , 3'result.adress.city' , 4'result.adress.state', 5'result.adress.zip' , 6'result.phone' ) BUT I WANT these output as a column name like(1’name' 2'street' 3city' 4'state' 5'zip' ,6'phone' )And also want to achieve these output in single field renamer processor

Have you checked out the expression evaluator stage?  https://docs.streamsets.com/portal/platform-datacollector/latest/datacollector/UserGuide/Processors/Expression.html?hl=expression