Uncrustify:
Where do the options work?
Move the cursor to a caret to see which option operates at this part of the code.
New lines
You want to "add/ force/ ignore/ remove" a new line.
Namespace
You want to "add/ force/ ignore/ remove" a new line.
Positioning
You want to change a position.
Spaces
You want to "add/ force/ ignore/ remove" a space at some places.
Code modifying
You want to modify the code.
Indenting
You want to indent the code.