Hi
There is not documentation about the available properties, but there are not many anyway.

The interesting for presentations ones in short:
- hideIfEmpty: when set to true, the presentation will only show up, when the attribute has a different value than its null value. Example: the Resolved By and Resolution Date fields that only appear when a work item is resolved. Supported by all presentations
- readonly: shows the value of the attribute in a read-only way. Only supported by Timestamp and Contributor kind.

In your specific case, for attributes of type string (smallString, mediumString and string), there are two possible presentations: Text and String. Text is a multi-line control, String a single-line one.

Regards

Marcel
Jazz Work Item team

No... String is a multi-line too :/

I checked again and in TC Client String is a single-line, but in web is a multi-line.

I opened a defect for this, okay?
https://jazz.net/jazz/web/projects/Jazz%20Project#action=com.ibm.team.workitem.viewWorkItem&id=64797