Moving regions between tracks (Ardour Manual)

Could the manual please include a note in the section about moving regions that you need to be in Slide mode to move regions between tracks (unless I’ve discovered a bug? in Ripple mode I can only move left-right & it took me a while to work it out). Ripple gets only a few short mentions in the manual.
https://manual.ardour.org/editing-and-arranging/move-regions/

thanks