Echo buttons have been around for a while now, but it was only recently that Amazon added the ability to use them to control your smarthome devices. This new feature allows you to assign routines to your Echo buttons, which essentially allows you to control multiple smarthome devices at the same time as just one touch of a button. Here's how to set it up.
RELATED: How to Connect Echo Buttons to Your Amazon Echo
Before you begin, this guide starts that your Echo buttons are already running. If they are not already a parade in your Echo, we have a guide that will take you through the process.
To assign an Echo button to a smarthome task, you must create an Alexa Routine. If you are not familiar with routines, we have a handy guide on how to set them up. You follow the same instructions when integrating your Echo button, but with a slight difference.
From the Home screen of the Alexa app, start with the menu button up in the upper left corner of the screen. 
Select "Routines" from the list of options.
Press the "+" button in the upper right corner to create a new routine. Unfortunately, you can not edit an existing routine to add your Echo button.
Select "When this happens" to the top.
Press "Echo Button"
Touch your Echo button and then press "Add" at the bottom of the app.
Then select what happens when you press your Echo button. Touch the "Add Action" option.
You can control all sorts of things with Echo Button, even non-smarter tasks. For this guide, we focus on smarthome, then tap "Smart Home" in the list of options.
You can control a single device, multiple devices simultaneously or a specific scene you have set.
I want to turn off my entire entertainment system with the Echo button, so I select the "TV scene" I created with my Logitech Harmony Hub.
Choose what you want the echo button to do when you press. In this case, I want it to turn off my entertainment system. So I press to select "Off" on the AC power switch.
Then I can add another action if I want to, but I am pleased with that. Click "Create" at the bottom while you're busy.
Your new Echo Button-Controlled Alexa Routine will now appear in the list of existing routines and is ready to go!