diff --git a/src/components/app.scss b/src/components/app.scss
index d068979..f3946d3 100644
--- a/src/components/app.scss
+++ b/src/components/app.scss
@@ -217,6 +217,17 @@
               }
               .sequences {
                 padding: 5px;
+
+                .sequence {
+                  cursor: pointer;
+
+                  &.highlighted {
+                    background-color: #FF00877f;
+                  }
+                  &.disabled {
+                    cursor: default;
+                  }
+                }
               }
             }
           }
diff --git a/src/components/app.tsx b/src/components/app.tsx
index 1a331db..9d935cf 100644
--- a/src/components/app.tsx
+++ b/src/components/app.tsx
@@ -141,6 +141,7 @@ export const App = () => {
   const innerOutputRef = useRef<HTMLDivElement | null>(null);
   const [fastSimulation, setFastSimulation] = useState(defaultFastSimulation);
   const fastSimulationRef = useRef(false);
+  const [highlightOutput, setHighlightOutput] = useState<{group: SequenceGroup, sequence: Node[]}|undefined>();
 
   const handleDimensionChange = ({width, height}: {width: number, height: number}) => {
     widthRef.current = width;
@@ -153,6 +154,7 @@ export const App = () => {
 
   const setSelectedNodeId = useCallback((id?: string, skipToggle?: boolean) => {
     if (!animating) {
+      setHighlightOutput(undefined);
       if ((!id || (id === selectedNodeId)) && !skipToggle) {
         _setSelectedNodeId(undefined);
       } else {
@@ -175,6 +177,10 @@ export const App = () => {
 
   const graphEmpty = useMemo(() => graph.nodes.length === 0, [graph]);
 
+  const highlightOutputNodes = useMemo(() => {
+    return animating ? undefined : highlightOutput?.sequence;
+  }, [animating, highlightOutput]);
+
   const generateNewSequence = useCallback(async () => {
     currentSequence.current = [];
     currentSequenceIndex.current = 0;
@@ -323,6 +329,7 @@ export const App = () => {
   }, [finishAnimating, startAnimationInterval]);
 
   const handleStep = useCallback(async () => {
+    setHighlightOutput(undefined);
     if ((generationMode !== "stepping") && (generationMode !== "paused")) {
       setGenerationMode("stepping");
       await generateNewSequence();
@@ -335,6 +342,7 @@ export const App = () => {
   }, [generationMode, animateCurrentSequenceIndex, animateNextSequenceIndex, finishAnimating, generateNewSequence]);
 
   const handlePlay = useCallback(async () => {
+    setHighlightOutput(undefined);
     setGenerationMode("playing");
     await generateNewSequence();
     animateCurrentSequenceIndex();
@@ -350,6 +358,15 @@ export const App = () => {
     finishAnimating(true);
   };
 
+  const toggleHighlightOutput = useCallback((group: SequenceGroup, sequence: Node[]) => {
+    setSelectedNodeId();
+    if (!highlightOutput || (highlightOutput.group !== group) || (highlightOutput.sequence !== sequence)) {
+      setHighlightOutput({group, sequence});
+    } else {
+      setHighlightOutput(undefined);
+    }
+  }, [highlightOutput, setHighlightOutput, setSelectedNodeId]);
+
   const uiForGenerate = () => {
     const playLabel = generationMode === "playing" ? "Pause" : (generationMode === "paused" ? "Resume" : "Play");
     const PlayOrPauseIcon = generationMode === "playing" ? PauseIcon : PlayIcon;
@@ -421,6 +438,9 @@ export const App = () => {
 
   const sequenceOutput = () => {
     const disabled = sequenceGroups.length === 0;
+    const toggleDisabled = animating;
+    const toggleStyle: React.CSSProperties = {cursor: toggleDisabled ? "default" : "pointer"};
+
     return (
       <div className="sequence-output">
         <label>Output:</label>
@@ -431,7 +451,21 @@ export const App = () => {
                 <div className="group" key={i}>
                   <SequenceOutputHeader group={group} />
                   <div className="sequences">
-                    {group.sequences.map((s, j) => <div key={j}>{s.map(n => n.label).join(group.delimiter)}</div>)}
+                    {group.sequences.map((s, j) => (
+                      <div
+                        key={j}
+                        className={clsx("sequence", {
+                          disabled: toggleDisabled,
+                          highlighted: (
+                            highlightOutput && highlightOutput.group === group && highlightOutput.sequence === s
+                          )
+                        })}
+                        style={toggleStyle}
+                        onClick={toggleDisabled ? undefined : () => toggleHighlightOutput(group, s)}
+                      >
+                        {s.map(n => n.label).join(group.delimiter)}
+                      </div>
+                    ))}
                   </div>
                 </div>
               );
@@ -546,6 +580,7 @@ export const App = () => {
                 highlightLoopOnNode={highlightLoopOnNode}
                 highlightEdge={highlightEdge}
                 highlightAllNextNodes={highlightAllNextNodes}
+                highlightOutputNodes={highlightOutputNodes}
                 selectedNodeId={selectedNodeId}
                 animating={animating}
                 setGraph={setGraph}
@@ -566,6 +601,7 @@ export const App = () => {
                 highlightLoopOnNode={highlightLoopOnNode}
                 highlightEdge={highlightEdge}
                 highlightAllNextNodes={highlightAllNextNodes}
+                highlightOutputNodes={highlightOutputNodes}
                 selectedNodeId={selectedNodeId}
                 animating={animating}
                 graphEmpty={graphEmpty}
diff --git a/src/components/dataset.tsx b/src/components/dataset.tsx
index c040261..b7b6065 100644
--- a/src/components/dataset.tsx
+++ b/src/components/dataset.tsx
@@ -10,6 +10,7 @@ interface Props {
   highlightLoopOnNode?: Node,
   highlightEdge?: Edge,
   highlightAllNextNodes: boolean;
+  highlightOutputNodes?: Node[];
   graph: GraphData;
   selectedNodeId?: string;
   animating: boolean;
@@ -25,7 +26,7 @@ interface Props {
 }
 
 export const Dataset = (props: Props) => {
-  const {highlightNode, highlightLoopOnNode, highlightEdge, highlightAllNextNodes,
+  const {highlightNode, highlightLoopOnNode, highlightEdge, highlightAllNextNodes, highlightOutputNodes,
          graph, graphEmpty, setSelectedNodeId, selectedNodeId, animating,
          fitViewAt, recenterViewAt,
          onReset, onReturnToMainMenu, onFitView, onRecenterView} = props;
@@ -79,6 +80,7 @@ export const Dataset = (props: Props) => {
         highlightLoopOnNode={highlightLoopOnNode}
         highlightEdge={highlightEdge}
         highlightAllNextNodes={highlightAllNextNodes}
+        highlightOutputNodes={highlightOutputNodes}
         selectedNodeId={selectedNodeId}
         animating={animating}
         allowDragging={true && !animating}
diff --git a/src/components/drawing.tsx b/src/components/drawing.tsx
index c831ed3..4dc8f76 100644
--- a/src/components/drawing.tsx
+++ b/src/components/drawing.tsx
@@ -19,6 +19,7 @@ interface Props {
   highlightLoopOnNode?: Node,
   highlightEdge?: Edge,
   highlightAllNextNodes: boolean;
+  highlightOutputNodes?: Node[];
   graph: GraphData;
   selectedNodeId?: string;
   animating: boolean;
@@ -38,7 +39,7 @@ const keepPunctuationRegex = /[.,?!:;]/g;
 const removePunctuationRegex = /["(){}[\]_+=|\\/><]/g;
 
 export const Drawing = (props: Props) => {
-  const {highlightNode, highlightLoopOnNode, highlightEdge, highlightAllNextNodes,
+  const {highlightNode, highlightLoopOnNode, highlightEdge, highlightAllNextNodes, highlightOutputNodes,
          graph, setGraph, setHighlightNode, setSelectedNodeId: _setSelectedNodeId,
          fitViewAt, recenterViewAt,
          selectedNodeId, animating, onReset, onReturnToMainMenu, onFitView, onRecenterView} = props;
@@ -314,6 +315,7 @@ export const Drawing = (props: Props) => {
         highlightNode={highlightNode}
         highlightEdge={highlightEdge}
         highlightAllNextNodes={highlightAllNextNodes}
+        highlightOutputNodes={highlightOutputNodes}
         highlightLoopOnNode={highlightLoopOnNode}
         allowDragging={drawingMode === "select"}
         autoArrange={autoArrange}
diff --git a/src/components/graph.tsx b/src/components/graph.tsx
index 57688e8..2b2e882 100644
--- a/src/components/graph.tsx
+++ b/src/components/graph.tsx
@@ -52,6 +52,7 @@ type Props = {
   highlightLoopOnNode?: Node,
   highlightEdge?: Edge,
   highlightAllNextNodes: boolean;
+  highlightOutputNodes?: Node[];
   allowDragging: boolean;
   autoArrange: boolean;
   rubberBand?: RubberBand;
@@ -242,7 +243,7 @@ const calculateNodeFontSize = (d: D3Node) => {
 const lineDashArray = (edge: D3Edge) => edge.value ? "" : "4";
 
 export const Graph = (props: Props) => {
-  const {graph, highlightNode, highlightLoopOnNode, highlightEdge, highlightAllNextNodes,
+  const {graph, highlightNode, highlightLoopOnNode, highlightEdge, highlightAllNextNodes, highlightOutputNodes,
          allowDragging, autoArrange, rubberBand, drawingMode,
          onClick, onNodeClick, onNodeDoubleClick, onEdgeClick, onDragStop,
          fitViewAt, recenterViewAt,
@@ -327,6 +328,47 @@ export const Graph = (props: Props) => {
 
   }, [selectedNodeId, animating, graph]);
 
+  const unhighlightNonOutput = useCallback((svg: d3.Selection<any, unknown, null, undefined>) => {
+    if (animating) {
+      return;
+    }
+
+    const nodeIds = highlightOutputNodes?.map(n => n.id) ?? [];
+    const haveNodes = nodeIds.length > 0;
+
+    // unhighlight non-highlighted nodes
+    svg
+      .selectAll("g.node")
+      .selectAll("ellipse")
+      .style("opacity", 1)
+      .filter((d: any) => haveNodes && !nodeIds.includes(d.id))
+      .style("opacity", unselectedOpacity);
+
+    // unhighlight non-highlighted edges
+    svg
+      .selectAll("line")
+      .style("opacity", 1)
+      .filter((d: any) => ((
+        (d.value > 0) && haveNodes && (!(nodeIds.includes(d.source?.id) && nodeIds.includes(d.target?.id))))))
+      .style("opacity", unselectedOpacity);
+
+    // unhighlight loops
+    svg
+      .selectAll("path.loop")
+      .style("opacity", 1)
+      .filter((d: any) => haveNodes && !nodeIds.includes(d.id))
+      .style("opacity", unselectedOpacity);
+
+    // unhighlight text
+    svg
+      .selectAll("g.node")
+      .selectAll("text")
+      .style("opacity", 1)
+      .filter((d: any) => haveNodes && !nodeIds.includes(d.id))
+      .style("opacity", unselectedOpacity);
+
+  }, [highlightOutputNodes, animating]);
+
   // calculate the svg dimensions
   useEffect(() => {
     if (dimensions) {
@@ -769,11 +811,11 @@ export const Graph = (props: Props) => {
       .selectAll("ellipse")
       .attr("fill", "#fff");
 
-    // highlight animated node
+    // highlight animated node and output nodes
     root
       .selectAll("g.node")
       .selectAll("ellipse")
-      .filter((d: any) => highlightNode?.id === d.id)
+      .filter((d: any) => (highlightNode?.id === d.id) || !!highlightOutputNodes?.find(n => n.id === d.id))
       .attr("fill", animatedNodeColor);
 
     // highlight animated edges
@@ -784,8 +826,12 @@ export const Graph = (props: Props) => {
       .attr("marker-end", arrowUrl)
       .filter((d: any) => ((
         (d.value > 0) && (
-        (highlightNode?.id === d.source?.id && highlightAllNextNodes) ||
-        (highlightEdge?.from === d.source?.id && highlightEdge?.to === d.target?.id)))))
+            (highlightNode?.id === d.source?.id && highlightAllNextNodes) ||
+            (highlightEdge?.from === d.source?.id && highlightEdge?.to === d.target?.id) ||
+            (!!highlightOutputNodes?.find(n => n.id === d.source?.id)
+              && !!highlightOutputNodes?.find(n => n.id === d.target?.id))
+          )
+        )))
       .attr("stroke", animatedArrowColor)
       .attr("stroke-dasharray", highlightAllNextNodes ? "4" : "")
       .attr("marker-end", animatedArrowUrl);
@@ -800,9 +846,11 @@ export const Graph = (props: Props) => {
       .attr("stroke-dasharray", highlightAllNextNodes ? "4" : "")
       .attr("marker-end", animatedArrowUrl);
 
+    unhighlightNonOutput(root);
     highlightSelected(root);
+
   }, [svgRef, d3Graph.nodes, selectedNodeId, highlightNode, highlightLoopOnNode,
-      highlightEdge, highlightAllNextNodes, highlightSelected]);
+      highlightEdge, highlightAllNextNodes, highlightSelected, highlightOutputNodes, unhighlightNonOutput]);
 
   const fitOrCenter = useCallback((op: "fit" | "center") => {
     if (!width || !height || !zoomRef.current) {