A different way to control electric windows is discussed on a Features page.
This isn't part of the main project. Especially in view of the cost of electric motors that'd do the job. Incremental cost above that required for ordinary electric window lifters isn't that big a step. (oh, a pun # you'll have to read the linked pages to understand)
Once again, motivation for presenting this information here is to preserve the freedom of the concepts of the design.