OK, as everyone on the forum knows Echo is a very powerful tool, initial setup and integration is a breeze. Echo and my Dot control most of the lights inside and out of my house, my home theater components, vacuum and soon my thermostat. The integration with with Harmony Hub works like magic starting and ending "activities". The issue I am running into is sending a single command thru the Hub that is not part of an activity. What I want is volume up, volume down (control the volume) on my receiver and start my vacuum (Roomba) with out having to start a "activity". Any ideas, suggestions or step by step instructions will be greatly appreciated. Thanks, OD1157.