unfortunately the last beta is a big step backwards. After appreciating the last official 1.7, now I find myself with worse controls and with a great confusion in the use of fingers together with the pen to perform some operations. holding two fingers on the screen and dragging an object made it possible to enlarge it starting from the center without changing its proportions, now no longer. holding two fingers on the screen allowed you to drag a line without changing its direction, not anymore. and many other difficulties in tracing perfectly orthogonal lines or identifying snap points at the geometric centers of the figures. Such a pity.