If you wanted to just have scrolling text on a big screen you would just use TEXT x,y,string$ commands for everything and increment the Y value on it all every so-many-milliseconds. If you want the text in a box you would need to make sure all your text doesn't exceed the width of the box, then increment the Y as usual with the following exceptions:
1. After you've drawn everything else place a box at the bottom of the text box to cover up the part of the text that is below the scroll view, same with the top, these boxes should be the same color as your main text box and should be as tall and wide as any of your text.
2. Once the text Y position gets high enough so that it will go past the box, stop writing that text.
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