Annotation labels can be individually set non-editable using the XML value EDITABLE=="0". Preventing editing of some labels while permitting editing of others supports annotation contexts involving content that is both changing and fixed. In this example, the circle label on the left can be click-dragged to reposition, or otherwise edited, while the circle label on the right cannot.

This functionality can be useful in educational contexts - for example in exams - as well as in shared data environments requiring initial markup and subsequent review with comments. Administrator Notes: In this release, direct editing of the annotations XML is required to add the value EDITABLE=0 to any specific label. To subsequently override this value and enable editing of all labels, use the HTML parameter value zMarkupMode=2 (rather than 0 for view-only or 1 for standard editing).