How to you create a text based dialogue like in a classic rpgs not in cutscenes

Im looking how to create a text based dialogue like in classic rpgs but have trouble sorting out more than one line of text how do I create this dialogue system to use universally.

I understand what you mean with using the wrap box to call on text child widgets but I’m having trouble doing the process could you explain to me the process as I know the theory but not how to put it into action.