Related Help Center articles:
Graphical Editing of Text Box and Pointer Line – http://helpcenter.graphisoft.com/?p=46607
Dimension Text Settings – http://helpcenter.graphisoft.com/?p=47201
More information: http://www.graphisoft.com/archicad/
This video clip explains the “Stretch” command available on the Pet Palette for Pointer nodes of Dimension Text, Label and Fill Area Text elements in ARCHICAD 19.