@LarrySF,

The Kasa platform is still growing in terms of automation capabilities so I will be sure to add a notify feature to our requests for our development team. 

For now, you're absolute best option is to use a service, such as Samsung Smartthings, to create complex automation for all the devices in your home, TP-Link or not. SmartThings is an official partner for our platform and provides a unified system for automating your home. 

When creating a Smart Action in Smartthings, there is an Action for 'Notify Someone' that can occur with any trigger you would expect. While I do not know what company provides HomeLink,  I would be surprised to find their service not available in SmartThings