I am trying to make a relatively large pigeonhole cabinet.  I started by dropping an open upper into my room, and then added the pigeonhole insert in the Interior Components selection.  Now I have shelves and dividers with cross lap joints just like I wanted.  But I want to dado those shelves and dividers into the top, bottom, and sides.  There are no machining options in the subassembly prompts for the pigeonhole insert.  Is there a way to add the dados without having to manually draw them all in?