To put it simply, I’m trying to make Object B become more opaque when the cursor hovers over Object A. I figured out how to make Object B become less opaque when hovering over Object A, but I can’t figure out how to reverse that. The answer is probably really simple, but I can’t figure it out. Does anyone know?
Try with opacity
If cursor is over Object set Object opacity = 125
Invert condition
if cursor is over Object opacity = 255

Hmm… a few ways I could see you doing this.
In my mind, the easiest way:
- Either have a custom cursor object, OR just have a object that is hidden at the start of the scene but is positioned to follow the cursor.
- Decide on the distance you want to start fading in the object. (Let’s say 200 for now)
- Compare the distance between your object and the customcursor/hidden object as the condition. (There is a “Compare the distance of two objects” condition)
- Use the “Change the opacity” action, and for the value, use 255 - ((ButtonNameHere.Distance(CustomCursor) / 200) * 255)
You can adjust the distance in both the condition and in the formula as needed.
I just thought of a really simple solution: make the opacity 255 - distance between cursor and object A. I wanted it to be dynamic, so that’s why I didn’t go with Ulises’ suggestion. I tried out the solution and it works great, minus a few adjustments. This is similar to what Silver-Streak suggested, thanks for the suggestions! (I did know about the distance compare condition)