My test plan looks like this
Http header manager
---defined google bot useragent
Accept-Language - en-En
Accept - text/html,application/xhtml+xml, "/"
User-Agent - Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
View Results in Tree
All i am trying is to parse user-agent value to a variable.
I see header manager values in request tab in view results tree.
Have you tried the "Regular Expression Extractor" provided by JMeter as a post-processor. I have had success in the past getting values from responses using this post-processor.
you can use parameterization using CSV file
Software Engineer - QA