Spanish translation of "Allow diagonal"

"Allow diagonal" is translated to Spanish as "Permitir diagonal".
While in informal English the word "diagonal" is used to refer to any sloping line, in Spanish that meaning isn't nearly as used -I'm a native Spanish speaker and can't read "diagonal" without thinking about geometry!
A better translation would be "Permitir inclinación", but in Transifex the translation is marked as reviewed, so it can't be edited.