Insert Text is a tool that existed in the previous versions of GeoGebra, but has been siginificantly improved. More Latex commands can now be used and they have been arranged in groups. The symbols have also been reorganized. Another novelty is the list of objects. The value of an object in the text can be inserted by clicking on the name of the object in the list.
Video presentation of the tool Insert Text.
Source files for video presentation.