Problem with teleprompter

Problem with teleprompter I use FM for a live multivision. For this purpose, the projector/screen is the presentation screen and my Macbook is the screen for the teleprompter. So far everything works. Only when there is a lot of text, the amount of text is limited to the specified text box and the excess text is truncated. You cannot scroll in the text field. What can you do here to be able to read all the text you have entered?
Best regards