I'm using CATIA V5 2019 R29 and I would like to modify the font text size in the drawing ambient because the default value is set to 3.5 and every time I need to change to 3 manually, how can I do this?
You have to drill down into your drafting standard and change the XML file values. They are in the CATIA install location or possibly in other folders depending on your companies setup or use of ancillary automation tools. These are the files that populate your drafting standard under file >> Page Setup >> Standard.