Adding dialogue/voice to project

I’m looking for the optimum method for adding substantial amounts of dialogue/voice files to our game. We were using Wwise previously, but for this project we’re using UE4’s native audio engine.
I have approximately 500 dialogue audio files which i need to set up in UE4, ready to be triggered from various blueprints. The game will not be localized, but i do need to use subtitles.
It looks like the “DialogueVoice” and “DialogueWave” nodes are the way to go, as i can insert text (for subtitles) right there, but from the look of it I need to generate DialogueWave nodes one by one for each line.
Is there no way to auto-generate multiple DialogueWave nodes, like you can with SoundCues? Doing it one by one is going to take for ever.
Am i missing something here?