While building selection fields into a workflow request text field, I have seem to run across a limitation of 1,000 characters in that field, even though it looks like I can add many more. To get around this, I have used Synergy Only Items for selection of unlimited values within a request.
It seems like this 1,000 character limitation also is in the Note field of the Section. When trying to copy a URL in this field, make sure that you do not exceed this limit. I will be looking for a resolution on this topic.