class RemoveTest : View("Remove Test") { val remove = SimpleBooleanProperty(false) override val root = vbox { setPrefSize(400.0, 400.0) form { fieldset { field("Remove") { combobox(remove, values = listOf(true, false)) } } } label("Remove me!") { removedWhen { remove } } label("I'm below the removed element (which might be removed of course)") } }