diff --git a/src/App/AST.css b/src/App/AST.css
index 598bfd1..3e0b061 100644
--- a/src/App/AST.css
+++ b/src/App/AST.css
@@ -53,6 +53,16 @@ details > summary:hover {
   display: inline-block;
 }
 
+.internalEvent {
+  border: 1px black solid;
+  border-radius: 6px;
+  margin-left: 4px;
+  padding-left: 2px;
+  padding-right: 2px;
+  background-color: rgb(255, 218, 252);
+  display: inline-block;
+}
+
 .inputEvent {
   border: 1px black solid;
   border-radius: 6px;
diff --git a/src/App/App.tsx b/src/App/App.tsx
index a044ffe..844209b 100644
--- a/src/App/App.tsx
+++ b/src/App/App.tsx
@@ -13,7 +13,7 @@ import Stack from "@mui/material/Stack";
 import Box from "@mui/material/Box";
 import { TopPanel } from "./TopPanel";
 import { RTHistory } from "./RTHistory";
-import { ShowAST, ShowInputEvents, ShowOutputEvents } from "./ShowAST";
+import { ShowAST, ShowInputEvents, ShowInternalEvents, ShowOutputEvents } from "./ShowAST";
 import { TraceableError } from "../statecharts/parser";
 import { getKeyHandler } from "./shortcut_handler";
 import { BottomPanel } from "./BottomPanel";
@@ -258,6 +258,10 @@ export function App() {
               <summary>input events</summary>
               <ShowInputEvents inputEvents={ast.inputEvents} onRaise={onRaise} disabled={rtIdx===undefined}/>
             </PersistentDetails>
+            <PersistentDetails localStorageKey="showInternalEvents" initiallyOpen={true}>
+              <summary>internal events</summary>
+              <ShowInternalEvents internalEvents={ast.internalEvents}/>
+            </PersistentDetails>
             <PersistentDetails localStorageKey="showOutputEvents" initiallyOpen={true}>
               <summary>output events</summary>
               <ShowOutputEvents outputEvents={ast.outputEvents}/>
diff --git a/src/App/BottomPanel.tsx b/src/App/BottomPanel.tsx
index 27d31ce..5cc03eb 100644
--- a/src/App/BottomPanel.tsx
+++ b/src/App/BottomPanel.tsx
@@ -4,7 +4,6 @@ import { TraceableError } from "../statecharts/parser";
 import "./BottomPanel.css";
 
 import head from "../head.svg" ;
-import { usePersistentState } from "@/util/persistent_state";
 import { PersistentDetails } from "./PersistentDetails";
 import { DigitalWatch } from "@/Plant/DigitalWatch/DigitalWatch";
 
diff --git a/src/App/ShowAST.tsx b/src/App/ShowAST.tsx
index 232f48f..c858005 100644
--- a/src/App/ShowAST.tsx
+++ b/src/App/ShowAST.tsx
@@ -106,6 +106,13 @@ export function ShowInputEvents({inputEvents, onRaise, disabled}: {inputEvents:
   )
 }
 
+export function ShowInternalEvents(props: {internalEvents: EventTrigger[]}) {
+  return [...props.internalEvents].map(({event, paramName}) => {
+      return <><div className="internalEvent">{event}{paramName===undefined?<></>:<>({paramName})</>}</div> </>;
+    });
+}
+
+
 export function ShowOutputEvents(props: {outputEvents: Set<string>}) {
   return [...props.outputEvents].map(eventName => {
       return <><div className="outputEvent">{eventName}</div> </>;
diff --git a/src/VisualEditor/VisualEditor.tsx b/src/VisualEditor/VisualEditor.tsx
index e2c3d61..529a0b3 100644
--- a/src/VisualEditor/VisualEditor.tsx
+++ b/src/VisualEditor/VisualEditor.tsx
@@ -79,6 +79,8 @@ export function VisualEditor({state, setState, ast, setAST, rt, errors, setError
 
   const [dragging, setDragging] = useState(false);
 
+  console.log(ast);
+
   // uid's of selected rountangles
   // const [selection, setSelection] = useState<Selection>([]);
   const selection = state.selection || [];
@@ -122,14 +124,13 @@ export function VisualEditor({state, setState, ast, setAST, rt, errors, setError
   useEffect(() => {
     // bit of a hacky way to force the animation on fired transitions to replay, if the new 'rt' contains the same fired transitions as the previous one
     requestAnimationFrame(() => {
-      console.log('rt changed');
       document.querySelectorAll(".arrow.fired").forEach(el => {
+        // @ts-ignore
         el.style.animation = 'none';
         requestAnimationFrame(() => {
+          // @ts-ignore
           el.style.animation = ''; 
         })
-        setTimeout(() => {
-        }, 10); // <- small timeout seems to be necessary or the animation won't restart
       });
     })
   }, [rt]);
diff --git a/src/statecharts/parser.ts b/src/statecharts/parser.ts
index 8a64763..a148b2d 100644
--- a/src/statecharts/parser.ts
+++ b/src/statecharts/parser.ts
@@ -286,25 +286,6 @@ export function parseStatechart(state: VisualEditorState, conns: Connections): [
             errors.push({shapeUid: text.uid, message: "triggerless transitions only allowed on pseudo-states"});
           }
         }
-
-        // raise-actions
-        for (const action of parsed.actions) {
-          if (action.kind === "raise") {
-            const {event} = action;
-            if (event.startsWith("_")) {
-              // internalEvents.add(event);
-            }
-            else {
-              outputEvents.add(event);
-            }
-          }
-        }
-
-        // collect variables
-        variables = variables.union(findVariables(parsed.guard));
-        for (const action of parsed.actions) {
-          variables = variables.union(findVariablesAction(action));
-        }
       }
     }
     else {
@@ -334,6 +315,26 @@ export function parseStatechart(state: VisualEditorState, conns: Connections): [
         belongsToState.comments.push([text.uid, parsed.text]);
       }
     }
+
+    if (parsed.kind === "transitionLabel") {
+      // collect output events
+      for (const action of parsed.actions) {
+        if (action.kind === "raise") {
+          const {event} = action;
+          if (event.startsWith("_")) {
+            // internalEvents.add({event: event});
+          }
+          else {
+            outputEvents.add(event);
+          }
+        }
+      }
+      // collect variables
+      variables = variables.union(findVariables(parsed.guard));
+      for (const action of parsed.actions) {
+        variables = variables.union(findVariablesAction(action));
+      }
+    }
   }
 
   for (const transition of uid2Transition.values()) {
diff --git a/todo.txt b/todo.txt
index 66c42c3..6578174 100644
--- a/todo.txt
+++ b/todo.txt
@@ -28,6 +28,7 @@
 TODO
 
 - must have:
+    - event parameters on output / internal events
     - explicit order of:
         - outgoing transitions
         - regions in AND-state