<@U68L6T95E> You want to create an extension funct...
# tornadofx
e
@dr.fornax You want to create an extension function on VBox, so basically define the function as
fun VBox.threeLabels
. This doesn't really belong in the TornadoFX tutorial, it's more "Extension Functions 101" I think. Shameless plug: I've covered this in Part 1 of my video tutorial on Kotlin 🙂