Is there a way to have this macro choose my secondary display? The macro only works on my main display.
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I don't know of any way to do it natively with Keyboard Maestro but I use the MonitorControl app to control my external monitor. You can set hotkey shortcuts to control any monitor with it just like you would do with Keyboard Maestro.
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These actions operate by simulating the hardware brightness keystroke, so there is no control - the system does whatever the system feels like doing in response to the hardware brightness key.
Hey @BruceK I forgot to mention the other day that using a monitor control app like the one I linked to, you can have the external monitor stay in sync with your "main display" (which I imagine is an iMac?). So when you adjust the iMac display (whether using the OS shortcut or a KM macro), it will also adjust the external monitor.
Just to give you an idea of how I control my brightness, here are the macros I use to do so. Once the iMac brightness changes, the external monitor also changes.
Screen Brightness- Up.kmmacros (2.5 KB)
Screen Brightness- Down.kmmacros (2.5 KB)
