This plugin is an alpha version and is under testing
Plugin to mass contact all users registered in the chatbot.
Connect the output to all node senders
Installing plugins it's easy: open Mission Control (https://your-bot.com/mc or locally http://localhost:1880/mc) and then go to the plugins section and click on "install" (some plugins could include a Node-RED flow to import).
Be sure to enable Mission Control in RedBot / Node-RED and enable it in the bot configuration, read a complete tutorial here.