Thank’s a million Andy!!!
That works exactly as I want!
I just realized that the anchor point needs to be EXACTLY in the middle of the layer, now I just need to figure out how to find that out numerically (I tried the expression on a text layer which applies the anchor at the bottom left corner by default for some strange reason). Like I said before, I’m really terrible with math and numbers, unfortunately I’ve had this handicap all my life, it’s called dyscalculia and I have tried to seriously learn expression several times but I get stuck when all the math comes in…
Again, thank’s Andy for helping guys like me!
Göran