Hello Jef,
I don't think there is this kind of solution into Archicad
I work with a Macbook Pro and a 4K screen just above
The most of my tools are on my MacBook screen
If I need to read or see more a detail on my 4K screen, I use this MacOs option
Then I scroll as I push the control button to zoom + or -
I use this option to teach Archicad by zooming to focus on a part of the screen
Christophe - FRANCEArchicad Designer and Teacher
Archicad 15 to 27 FRA FULL
OS 11.6 Big Sur - MacBook Pro 2017 - 16Go RAM
"Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin