This mode only allows to edit the text of the annotation. In order to do some modifications on the annotation, i.e. to finely manipulate annotation boundaries or to split a annotation, right click on the annotation. This will popup a menu (see Figure 3.16) . Select edit in annotation mode to jump to this annotation in the annotation mode which allows you do modify the annotations. For detailed information on changes the annotation boundaries see Section 2.8.7 and to split annotations see Section 2.9.19