GameMaker Studio 2 doesn't run on iOS, so something can't be right about that part of the statement. Do you mean Mac OS?
When you say "text", do you mean DnD or code?
If you meant DnD, you cut off the image right at the important part of the right side. Click on the arrow on the right side of the screenshot to open the D&D menu.
If you meant code, the project is set to default to DnD mode. You can change this under Game Options -> Main -> Use DnD as default script type. You can convert existing events from DnD to code by right-clicking the event and selecting "Convert to GML".