About Dynamic Text box and also some stuff

I know the Title of this thread is very general, I apologise for that. Here’s my question:
How do I add links into files that are loaded externally? For example, I have test.txt and on a click of a button, it displays test.txt, and now I want to add links into test.txt, how am I able to do that?

And also, is there anywhere I can get a Tag Board combined into flash.