Set these up in the Routines section of the Alexa app ... but it is available on the latest devices, even the Echo Show 5. For apps that aren’t available on the system, the Echo Show comes ...

Change volume: "Alexa, set the volume to 5," "Alexa, louder" or, "Alexa, turn up/down the volume." The Echo Show devices and Echo Spot are the only Echo speakers with touchscreen displays.