Am surprised to see no responses in the forums. Somebody check these regularly. Sorry for asking, wanted to check if I have to depend on Github for the issues.
There are many feature requests we keep track of, so we cannot work on them all. If you have a budget you can also sponsor the development of the feature in Matomo, please contact us via http://matomo.org/development
Thanks for your response. While this seems to be an enhancement, this is actually a bug that needs to be addressed. When there is a provision to capture the keywords by category there should be a provision to retrieve the same by it.