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Enabling string escape characters on backoffice fields

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Hi all.

I have created on the items.xml a new custom model definition "CustomTrack" with a particular field "details" of type BLOB. It worked perfectly.

By the way, when I save an instace of CustomTrack, on "details" fields I save a really long string with multiple escape characters like "\n" and "\t".

On backoffice view, opening the instance of this "CustomTrack", these escape characters are not considered and what I see it's just a long line of text in a really small textbox.

Is there a proper way to show a larger textbox with the multiline value correctly formatted (by considering the escape characters)? Can someone help me to create the proper xml snippet for customize the *backoffice-config.xml?

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