You can trigger an automation created in PlusMinus app using Alexa or Google Home. Follow the instructions s below:
1. Tap the "+" at the top right corner of the app and select "Add Automation".
2. Enter the name of the automation and select the background color.
3. Under the "When" clause select "Trigger Manually"->"By Alexa and Google Home" and tap "Save" at the top right corner of your screen.
4. Select the devices you want to control under the "Then" and then tap "Save" at the top right corner of your screen.
5.a. Trigger the automation in Alexa by saying the following command,
"Alexa, turn on <name of automation>".
5.b. Trigger the automation in Google Home by saying the following command,
"OK Google, Turn on <name of automation>".