Looking for ideas- jig for tenons

[JamesB]

I am building a version of a Rubou workbench, ala Christopher Schwarz.  Using my new 2200 (awesome) withMFS 400 for mortises.  Would like to route tenons as well versus cutting on table saw.  Mortise/tenons are as large as 4X1 1/2" for legs and stringers.  Thought that someone might have developed a jig for use with MFS400 to cut tenons.  I went back two years on this site and found nothing.  Would appreciate any suggestions re a tenon jig with or without MFS400. Thanks, Jim Baker