Boardgent allows you. (To learn how to execute actions, go to the following link).
Screenshot mac
Screenshot Windows
In the "message" field you can put the text of the notification that you are going to send to the selected devices, the "sound" field is left unchecked in case you do not want the notification to sound with the default sound of the operating system.
Supported on:
Windows (Windows 7 or higher)
Mac - (Mac OS 10.13 or higher)