Yup the instructions above are just for figuring out the correct scale factor for you.
Once you know that, right click the Shortcut and copy the same command (from the Run dialog) into the shortcut’s “Target” field – then Roon should open up with your custom scale factor every time.
There shouldn’t be any connection here. I doubt this will happen every time, but let us know if it does and we can take a deeper look.
Using a custom scale factor like this is pretty uncommon, which is why the steps are a bit convoluted. That said, once you get this working I’m guessing you won’t have to think about this any more.
Let us know how it’s going and we’ll make sure we get this right, Mike. Thank you!