diff --git a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AnimationFileModel.kt b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AnimationFileModel.kt
index 7b2cc63..630b055 100644
--- a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AnimationFileModel.kt
+++ b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AnimationFileModel.kt
@@ -12,7 +12,7 @@ import tornadofx.observable
 import tornadofx.setValue
 import java.util.concurrent.ExecutorService
 
-class AnimationFileModel(animationFilePath: Path, private val executor: ExecutorService) {
+class AnimationFileModel(val parentModel: MainModel, animationFilePath: Path, private val executor: ExecutorService) {
 	val spineJson = SpineJson(animationFilePath)
 
 	val slotsProperty = SimpleObjectProperty<ObservableList<String>>()
@@ -55,7 +55,11 @@ class AnimationFileModel(animationFilePath: Path, private val executor: Executor
 	val audioFileModelsProperty = SimpleListProperty<AudioFileModel>(
 		spineJson.audioEvents
 			.map { event ->
-				AudioFileModel(event, this, executor, { result -> saveAnimation(result, event.name) })
+				var audioFileModel: AudioFileModel? = null
+				val reportResult: (List<MouthCue>) -> Unit =
+					{ result -> saveAnimation(audioFileModel!!.animationName, event.name, result) }
+				audioFileModel = AudioFileModel(event, this, executor, reportResult)
+				return@map audioFileModel
 			}
 			.observable()
 	)
@@ -88,14 +92,11 @@ class AnimationFileModel(animationFilePath: Path, private val executor: Executor
 	}
 	val valid by validProperty
 
-	private fun saveAnimation(mouthCues: List<MouthCue>, audioEventName: String) {
-		val animationName = getAnimationName(audioEventName)
+	private fun saveAnimation(animationName: String, audioEventName: String, mouthCues: List<MouthCue>) {
 		spineJson.createOrUpdateAnimation(mouthCues, audioEventName, animationName, mouthSlot, mouthNaming)
 		spineJson.save()
 	}
 
-	private fun getAnimationName(audioEventName: String): String = "say_$audioEventName"
-
 	init {
 		slots = spineJson.slots.observable()
 		mouthSlot = spineJson.guessMouthSlot()
diff --git a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AudioFileModel.kt b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AudioFileModel.kt
index 9220f08..11b81c2 100644
--- a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AudioFileModel.kt
+++ b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/AudioFileModel.kt
@@ -29,6 +29,23 @@ class AudioFileModel(
 	val displayFilePathProperty = SimpleStringProperty(audioEvent.relativeAudioFilePath)
 	val displayFilePath by displayFilePathProperty
 
+	val animationNameProperty = SimpleStringProperty().apply {
+		val mainModel = parentModel.parentModel
+		bind(object : ObjectBinding<String>() {
+			init {
+				super.bind(
+					mainModel.animationPrefixProperty,
+					eventNameProperty,
+					mainModel.animationSuffixProperty
+				)
+			}
+			override fun computeValue(): String {
+				return mainModel.animationPrefix + eventName + mainModel.animationSuffix
+			}
+		})
+	}
+	val animationName by animationNameProperty
+
 	val dialogProperty = SimpleStringProperty(audioEvent.dialog)
 	val dialog: String? by dialogProperty
 
@@ -36,8 +53,17 @@ class AudioFileModel(
 	var animationProgress by animationProgressProperty
 		private set
 
-	private val animatedPreviouslyProperty = SimpleBooleanProperty(false) // TODO: Initial value
-	private var animatedPreviously by animatedPreviouslyProperty
+	private val animatedProperty = SimpleBooleanProperty().apply {
+		bind(object : ObjectBinding<Boolean>() {
+			init {
+				super.bind(animationNameProperty, parentModel.spineJson.animationNames)
+			}
+			override fun computeValue(): Boolean {
+				return parentModel.spineJson.animationNames.contains(animationName)
+			}
+		})
+	}
+	private var animated by animatedProperty
 
 	private val futureProperty = SimpleObjectProperty<Future<*>?>()
 	private var future by futureProperty
@@ -45,7 +71,7 @@ class AudioFileModel(
 	private val audioFileStateProperty = SimpleObjectProperty<AudioFileState>().apply {
 		bind(object : ObjectBinding<AudioFileState>() {
 			init {
-				super.bind(animatedPreviouslyProperty, futureProperty, animationProgressProperty)
+				super.bind(animatedProperty, futureProperty, animationProgressProperty)
 			}
 			override fun computeValue(): AudioFileState {
 				return if (future != null) {
@@ -57,7 +83,7 @@ class AudioFileModel(
 					else
 						AudioFileState(AudioFileStatus.Pending)
 				} else {
-					if (animatedPreviously)
+					if (animated)
 						AudioFileState(AudioFileStatus.Done)
 					else
 						AudioFileState(AudioFileStatus.NotAnimated)
@@ -133,7 +159,6 @@ class AudioFileModel(
 					val result = rhubarbTask.call()
 					runAndWait {
 						reportResult(result)
-						animatedPreviously = true
 					}
 				} finally {
 					runAndWait {
diff --git a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainModel.kt b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainModel.kt
index f860a44..ffe55e9 100644
--- a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainModel.kt
+++ b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainModel.kt
@@ -29,7 +29,7 @@ class MainModel(private val executor: ExecutorService) {
 				throw Exception("File does not exist.")
 			}
 
-			animationFileModel = AnimationFileModel(path, executor)
+			animationFileModel = AnimationFileModel(this, path, executor)
 		}
 	}
 	var filePathString by filePathStringProperty
@@ -42,5 +42,11 @@ class MainModel(private val executor: ExecutorService) {
 	var animationFileModel by animationFileModelProperty
 		private set
 
+	val animationPrefixProperty = SimpleStringProperty("say_")
+	var animationPrefix by animationPrefixProperty
+
+	val animationSuffixProperty = SimpleStringProperty("")
+	var animationSuffix by animationSuffixProperty
+
 	private fun getDefaultPathString() = FX.application.parameters.raw.firstOrNull()
 }
\ No newline at end of file
diff --git a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainView.kt b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainView.kt
index 1ca39e8..cc4ab47 100644
--- a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainView.kt
+++ b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/MainView.kt
@@ -71,6 +71,17 @@ class MainView : View() {
 					errorProperty().bind(fileModelProperty.select { it!!.mouthShapesErrorProperty })
 				}
 			}
+			field("Animation naming") {
+				textfield {
+					maxWidth = 100.0
+					textProperty().bindBidirectional(mainModel.animationPrefixProperty)
+				}
+				label("<audio event name>")
+				textfield {
+					maxWidth = 100.0
+					textProperty().bindBidirectional(mainModel.animationSuffixProperty)
+				}
+			}
 		}
 		fieldset("Audio events") {
 			tableview<AudioFileModel> {
@@ -78,6 +89,8 @@ class MainView : View() {
 				columnResizePolicy = SmartResize.POLICY
 				column("Event", AudioFileModel::eventNameProperty)
 					.weigthedWidth(1.0)
+				column("Animation name", AudioFileModel::animationNameProperty)
+					.weigthedWidth(1.0)
 				column("Audio file", AudioFileModel::displayFilePathProperty)
 					.weigthedWidth(1.0)
 				column("Dialog", AudioFileModel::dialogProperty).apply {
diff --git a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/SpineJson.kt b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/SpineJson.kt
index 12f784e..d351019 100644
--- a/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/SpineJson.kt
+++ b/extras/rhubarb-for-spine/src/main/kotlin/com/rhubarb_lip_sync/rhubarb_for_spine/SpineJson.kt
@@ -1,6 +1,7 @@
 package com.rhubarb_lip_sync.rhubarb_for_spine
 
 import com.beust.klaxon.*
+import javafx.collections.FXCollections.observableSet
 import java.nio.charset.StandardCharsets
 import java.nio.file.Files
 import java.nio.file.Path
@@ -94,10 +95,9 @@ class SpineJson(val filePath: Path) {
 		return attachments.map { it.key }
 	}
 
-	fun hasAnimation(animationName: String): Boolean {
-		val animations = json.obj("animations") ?: return false
-		return animations.any { it.key == animationName }
-	}
+	val animationNames = observableSet<String>(
+		json.obj("animations")?.map{ it.key }?.toSet() ?: setOf()
+	)
 
 	fun createOrUpdateAnimation(mouthCues: List<MouthCue>, eventName: String, animationName: String,
 		mouthSlot: String, mouthNaming: MouthNaming
@@ -138,6 +138,8 @@ class SpineJson(val filePath: Path) {
 				}
 			)
 		}
+
+		animationNames.add(animationName)
 	}
 
 	fun save() {