diff --git a/Framework/Editor/V0/AacFlStates.cs b/Framework/Editor/V0/AacFlStates.cs
index ac0303a..4f21604 100644
--- a/Framework/Editor/V0/AacFlStates.cs
+++ b/Framework/Editor/V0/AacFlStates.cs
@@ -626,6 +626,12 @@ namespace AnimatorAsCode.V0
             return this;
         }
 
+        public AacFlTransition WithInterruption(TransitionInterruptionSource interruptionSource)
+        {
+            _transition.interruptionSource = interruptionSource;
+            return this;
+        }
+
         public AacFlTransition WithTransitionDurationSeconds(float transitionDuration)
         {
             _transition.duration = transitionDuration;
diff --git a/README.md b/README.md
index c58da27..f3898db 100644
--- a/README.md
+++ b/README.md
@@ -776,7 +776,8 @@ foreach (var cancelWhenNotAllowed in new[] {auto, reverse, manual, custom, done}
 
 ## Attributes (AacFlTransition : AacFlNewTransitionContinuation)
 
-- `AacFlTransition WithSourceInterruption()` /// Set interruption source to be Source. // FIXME: Clunky interface.
+- `AacFlTransition WithSourceInterruption()` /// Set interruption source to be Source. // FIXME: Clunky interface. Will likely be deprecated in favor of `AacFlTransition WithInterruption(...)`
+- `AacFlTransition WithInterruption(TransitionInterruptionSource interruptionSource)` /// Set an interruption source.
 - `AacFlTransition WithTransitionDurationSeconds(float transitionDuration)` /// Set a fixed transition duration in seconds.
 - `AacFlTransition WithTransitionDurationPercent(float transitionDurationNormalized)` /// Set a non-fixed transition duration in a normalized amount. // FIXME: Percent is a misnomer.
 - `AacFlTransition WithOrderedInterruption()` /// Enable ordered interruption.