OK, I think I figured it out, at least sort of. Take a new workbench project, insert the final analysis first, right click on setup, select transfer data from new, and select the desired previous analysis type. Data, Geometry and model will all be linked, as well as the solution from the previous analysis going into the setup of the following analysis. What I still don't understand, is why I can't do a static analysis, then insert a modal analysis and take the model and solution from the previous static analysis and insert it into the new modal analysis, as would seem more intuitive to me, doing it in sequential order, as opposed to the reverse sequential order ANSYS seems to mandate. Unless I am still missing something?