I found that if you have both the Roborock AND the Mi Home skill enabled in Alexa, you can set up routines to stop (pause), resume, and return to dock. Officially, each of these skills only has on/off. However, the “off” in one skill pauses/stops, and the “off” in the other skill docks the robot. Having both skills enabled will give you two devices in Alexa. You can set up a voice activated routine to use one device’s off for “stop the vacuum” (etc) and the other device for “dock the vacuum” (etc).