Hey there,
I am really sorry for the delay of this reply as it is a weekend for us here.
Currently I am not sure if I understand you here, if you referring the module, mean you would like to show specific single category post under that module? (you can check my attached screenshot below.
If that is the case, you can use Easyblog latest blog post module. then you can change the module type to "Recent posts by category", you can refer my attached second screenshot.
Hope this will help.