How do I attach captions to custom sounds?

[Luigifan18]

By this, I mean the commentary that the game can display alongside sound effects playing, like [Electric zap], [Aquaphobia], or [Obnoxious disco music]. I checked the wiki, and it says nothing about how a caption would be attached to a sound. (It would be part of the sound effect table, right?)

 

[chromaticpipe]

In a lua script write this

sfxinfo[sfx_hjmp].caption = "High Jump"

make sure you freeslot the sound first