At "Save sort order" in the same dialog, one can also select a field. I would have expected the same choice for the selection of the fields to apply the save action. Is that possible? Reason: I am too lazy to input the field name manually.

Please not that there is the "special field" "all" which applies the save action on all fields.
I will look into this, Together with #958
@koppor
Edit// When you select a field in the combo box e.g. address, it get's displayed in the text field.
However, it currently does not get displayed on the combobox itself.
@Siedlerchr Yes, I know. That was sort of a quick hack to enable quick selection of common fields, but also the input of arbitrary fields (not contained in the combobox list). Don't know, whether that's possible with a normal JCombobox, too.
For the sort criterion:
A solution to this would be to use an Editable Combobox (Default Combobox with Editable=true)
https://docs.oracle.com/javase/tutorial/uiswing/components/combobox.html#editable
For the Save Action I would suggest the same solution
This save sort order selection with the Combobox and the Textfield is also used in the Preferences->Export sorting, it is the same class (SaveOrderConfigDisplay) which is used for both
A rework would then profit in both cases.
Most helpful comment
For the sort criterion:
A solution to this would be to use an Editable Combobox (Default Combobox with Editable=true)
https://docs.oracle.com/javase/tutorial/uiswing/components/combobox.html#editable
=> This would make the textfield unnecessary.
For the Save Action I would suggest the same solution