I wrote a not-so-short guide on how to implement keyboard functionality into this plugin such that the player can use the Enter and Up/Down arrow keys to fully navigate dialogues (with one caveat at the very end that I have not figured out):
https://imgur./gallery/s8PRFya
Ultimately, what you have to do is quite simple but I made the explanations overkill for any possible newcomers to this plugin / Blueprints in general.