Targeting pod zoom issue

Hello.
I’m having an issue with top-tier CAS that I can’t seem to fix. By default, targeting pods (like the Litening III) only have two zoom levels: Max and Min. However, I’ve seen some YouTubers zooming in and out smoothly, just like on helicopters. I couldn’t find the right option in the settings. Please help!

In the mouse wheel settings, select zoom axis or smthg like that.

Exactly, you can use the mouse wheel to zoom with but then you’ll not be able to use it to control the engines.