Here you can change Defocus, Astigmatism
(2-Fold and 3-Fold) and Convergence
(with Magnification slider).
Move sliders to change the values, or
Put the numbers directly into edit-boxes next to
the sliders (values are indicated in [nm]).
If you want more range than a slider allows put the
desired number directly in the edit-box next to the slider and hit
the Enter keyboard-button.
Red check-marks default the values (Defocus to
Scherzer, Astigmatisms to zero).