Loading more text into dynamic_scroller

I am trying to combine two tutorials that I have found on the net.
One is at
and deals with loading unicode multilangauge files into a text box. Works great but I can’t seem to figure out how to get a scroll bar to work with the text.

works great to scroll the dynamic text…but…

is there anyway to load in another text file from a button similar to the oddhammer tutorial into the scrolable text box?

Any help would be appreciated.