In Arbortext Editor you can select how to write non-ascii characters - either character entity references, numeric character references or characters.
If you are comparing a document that was saved using a different method for non-ascii characters the compare tool lights up like a christmas tree.
It would be nice to be able to configure the tolerance of the compare tool to ignore the difference of non-ascii characters that were written in different formats.
This sounds like it might be a good candidate for an Idea request.
On the right side of the screen, when you're looking at the Arbortext Community home page, you should see an option to 'Create a Product Idea'. Depending on the response to that Idea, our Product Management team decides what new features to add to upcoming versions of the Editor. Thanks!
I don't seem to be allowed to submit an idea using the page you suggested.
"You are not allowed to create or update this content"
Sean, maybe try going from the main Arbortext Community page instead. This new interface may require a different approach.
On the Arbortext page, go to the Actions dropdown, and select it from there. See if that allows you to submit one: