The style section on the motif XS (lets be sure that we are talking about the right keyboard) does have styles where you do not have to play anything except the chords and the tracks will follow your chords just like a Tyros.
I suggest those who have an XS and haven’t taken the time to get to know the XS, go to pattern mode, select a pattern, press chords in your left hand and press the fs buttons. Do this first before coming on the forum and giving incorrect information.
Based on the limitations of the arranger section on the XS, I could do a whole gig using the XS as an arranger. It may not be like a Tyros, but it would get the job done of sounding like a band.
That goes back to the topic Spalding had about using an instrument creatively.
Saying the XS is not an arranger is like saying the Korg PA 2 x pro is not a workstation when you can do on the PA 2x pro the same thing you can do on the 01w.
_________________________
TTG