The item is only available when you click outside of the value.
Created attachment 169196 [details] Patch
Comment on attachment 169196 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=169196&action=review > Source/WebCore/inspector/front-end/ObjectPropertiesSection.js:262 > + populateContextMenu: function(contextMenu) Please annotate > Source/WebCore/inspector/front-end/WatchExpressionsSidebarPane.js:395 > + * @override override is not supported
Committed r131612: <http://trac.webkit.org/changeset/131612>