Setting Subtitle Duration in a Sound Cue using Dialogue Player Node

We are using Sound Cues for all of our in-game audio, including dialogue.

We are using the Dialogue Player Node to activate the dialogue within the Sound Cue, which is in turn linked to a Dialogue Wave containing speaking information, subtitle text etc.

However, we have one issue - we cannot set the duration of the subtitles.

They go away after an arbitrary period of time, often too short to make the subtitles readable. The Dialogue Player node lacks any ability to set Subtitle duration, so we’re kind of at a loss here. Is there a variable in code we need to expose so we can do this?