Launch a class method from a DeepSee detail listing link or button?

Surely there is an easy way to invoke a ClassMethod from a DeepSee detail listing line, in a similar way to launching a URL.  In this case I need to do a little preprocessing of a request adding a SAML token.

I thought I knew how to do it long ago, but I can't read my faded notes on that old parchment.

-Kevin