ehdifsetting
The term "ehdifsetting" appears to be a misspelling or a non-standard term. It does not correspond to any recognized technical term, concept, or common word in English. It is possible that "ehdifsetting" is a typographical error, a private jargon within a specific group, or a portmanteau that has not gained widespread recognition.
If the intention was to refer to "edge setting," this is a term used in various contexts.
In other fields, "edge setting" could have different meanings. For example, in gaming, it might refer to