For the pushover config node:
- the "User" field is the "User Token" listed in your pushover account.
- the "Token" field is an "Application/API Token" in your pushover account. You may need to go into your account and make one as you should use a different one for each application that sends pushover notifications.
Then:
For msgs into a pushover node
- msg.device (if specified, it's optional) in an incoming msg to the pushover node is the name of a device you have configured, as listed in your pushover account page