The Chromecast Action will be used to control a Chromecast Device.
You have to select „Chromecast Action“ as Action Type and the device Id of your Chromecast device. The select the function you want to process in the field „Command“. For configure the volume command you have also to set the volume level (0 – 100), which you want to set on your chromecast device. If you define a delay, the action will be executed with the defined delay (specificaton in milliseconds). The parameter context is used only for some internal functionality in the IRControl System.