Automate MacBook screen brightness when docked/undocked?

[JSchwage]

Just wondering if anyone has any recommendations for how I might be able to automate screen brightness settings when I connect an external display versus when I'm mobile and not connected to an external display. Really what I want is a set brightness level when an external display is connected, and then enable auto-brightness when there is no external display.

Are there any ways to automate this in macOS? If not, are there any 3rd party applications that might provide this functionality?

I appreciate any help!

 

[Bigwaff]

Really what I want is a set brightness level when an external display is connected, and then enable auto-brightness when there is no external display.

Set brightness levels of which of the displays?

 

[MacCheetah3]

I’m a novice at Shortcuts but here’s a possible starting point:

Unfortunately, Apple doesn’t have an action to toggle Auto-Brightness (yet?)

 

[JSchwage]

Set brightness levels of which of the displays?

Sorry should have clarified. I want to automate the brightness level of the built-in display.