How do I keep scale AND relative position on children when scaling parent?

I have a map (parent) with dots (childs x,y,width,height) spawned at runtime.

On touch dots I use tween to scale map and the dots keep their relative position on the map, Great!

However, I would like the dots to keep their scale (not zoom with the map).

With Width and Height un-ticked they loose their relative position but stay at scale 1.

Since unlimited Dots are spawned at runtime I cannot use imagepoints.

For performance and simplicity I'd rather not explore solutions with ghost-dots pinned to invisible "real" dots.

Am I missing a setting or just using it wrong?