In DAW control mode you can set up every button to controll CC which makes it possible to controll most functions of the Varranger. A user named moesiuers posted some youtube videos about using Varranger with the Motif XF which is essentially the same functionallity as the Motif XS

If any keyboard is fit for daw controll it must be the motif, in daw controll mode it should be possible to program all sliders and buttons to controll things in Varranger, but you need to figure it out yourself