Redmine

When changing a custom field, the diff in the History view and in the mail sent looks like :

• My Custom field changed from previous text that can be quite long to new text that can be even longer, where it can be difficult to spot the beginning.

Could it be possible to make it look like the description diff : a link that points to the change displayed like a diff (new lines in green, removed/changed ones in red) ?

I hope it is clear enough, I can provide screenshots if needed.