Like an easter egg hunt: No visible and so called button “Switch to opacity/noise” and no “Zu Deckkraft/Rauschen umschalten”, no so called "Schalteroption”. Unlike the description in the help. Only a tiny round indicator and only a meaningless tooltip “Wechseln” if coincidentally the pointer happens to touch that very small screen area (that is not described in the help). Not intuitive/easy for (new) users. Especially since the Windows versions have a bit more to offer here than the Mac versions.