My b2evolution Version: 2.x

I'm using 2.4.6. I have a link to archives for blogs in general, but what I need is to just link to an archives page for one category. I can include the archives plugin for one of my categories:
$Plugins->call_by_code( 'evo_Arch', array( // Add parameters below:
'title' => 'Archives by Month...',
'link_type' => 'context',
'context_isolation' => 'm',
) );

and that's fine, but what I'd like to do with a *different* skin is call b2evolution to show items from that category, and then go to a different "page" for those archives. Kind of like how it works for calling an archive for the whole blog, but limiting it instead to just that category.

Here's what works to link to the whole blog:
/index.php?disp=arcdir

Can anyone think of the best way to combine these two functions?

I've been working on it for a while, but haven't figured out a way. Thank you in advance!