Can I have a general Subscribe my email on the front page and category specific subscribe my email o

I have Subscribe by Email installed on the Home page of my site and more and more members are using it which is great. What I know wish to go is create category pages for specific squads within the club and then allow those members to be able to subscribe to just those category posts. Is there a way to do this? It looks to me that the Category set up is done at the top level rather than in the widget settings
Thank you
Nigel