Hello again,

I am really sorry to ask that question for which the solution is super easy I am sure. But I can't find a way to select that little "crosshair" and put it into the middle of the object I want to scale.
This crosshair is out of place (middle) at every object





EDIT:
One more problem with circles.
Why do I get those unsmooth edges?.
And why is the curve smooth and the geometry inside is shown not smooth?
https://ibb.co/P6zgMy7

Moi3D File:
https://www.dropbox.com/s/foi9xq1sqjnpbx0/little_problem_child.3dm?dl=0


Thank you very much again