
How do I fix it?
Had this same problem too.
If you scroll down, there should be a Canvas component. If you change Render Mode to World Space you should be able to modify them.

It still hasnt been resolved? When is this bug going to get fixed?
@andrew-lukasik

I can’t modify the values
Anchor it to a point and not an area
https://docs.unity3d.com/Packages/com.unity.ugui@1.0/manual/UIBasicLayout.html