Gets or sets a value that indicates whether to use the rotate thumbs of this AnnEditDesigner.
Object.defineProperty(AnnEditDesigner.prototype, 'useRotateThumbs',get: function(),set: function(value))
useRotateThumbs: boolean; true to use the rotate thumbs of this AnnEditDesigner; otherwise, it is false. The default value is true.
For more control over rotating an AnnObject or AnnGroupObject in design mode with an AnnEditDesigner, set this property to true. This allows the user to precisely control the rotate center, as well as the rotate angle, by moving the rotate thumbs. Setting this property to false disables the rotate user interface. For more information, refer to Annotation Rotation Options.
