Looking for a method to swap two modifier keys (Option and Control) for just one App

[Erik_Bangsund]

In most of my programs, holding down Control and scrolling my mouse wheel results in the view zooming in/out for the item. But in one program (Skim) it is Option, not Control.
So I was looking for a way to swap Control and Option for one program. I am aware of the Mac System Setting "Keyboard" that lets me assign these but that is a universal setting.

[xidiot]

Check this one - Low Level Key Remapping · GitBook

[Andreas_Hegenberg]

yup, this should work:

[Erik_Bangsund]

Absolutely PERFECT!! Thank you!!