diff --git a/src/panel/components/EvaluationsPanel.spec.tsx b/src/panel/components/EvaluationsPanel.spec.tsx
index 749e341..cd2ef17 100644
--- a/src/panel/components/EvaluationsPanel.spec.tsx
+++ b/src/panel/components/EvaluationsPanel.spec.tsx
@@ -7,6 +7,7 @@ import { PropItem } from "./PropList";
 
 jest.mock("../libs/EvaluationsContext");
 const setEvaluations = jest.fn();
+const savePreserveLogs = jest.fn();
 (useEvaluationsContext as jest.Mock).mockReturnValue({
   evaluations: [
     {
@@ -29,6 +30,7 @@ const setEvaluations = jest.fn();
     },
   ],
   setEvaluations,
+  savePreserveLogs,
 });
 
 describe("EvaluationsPanel", () => {
@@ -44,7 +46,7 @@ describe("EvaluationsPanel", () => {
   it("should toggle string-wrap", () => {
     const wrapper = shallow(<EvaluationsPanel />);
     expect(wrapper.hasClass("string-wrap")).toBe(false);
-    wrapper.find(Switch).invoke("onChange")({
+    wrapper.find("[label='String Wrap']").invoke("onChange")({
       target: {
         checked: true,
       },
@@ -58,6 +60,16 @@ describe("EvaluationsPanel", () => {
     expect(setEvaluations).toBeCalledWith([]);
   });
 
+  it("should toggle preserveLogs", () => {
+    const wrapper = shallow(<EvaluationsPanel />);
+    wrapper.find("[label='Preserve logs']").invoke("onChange")({
+      target: {
+        checked: true,
+      },
+    } as any);
+    expect(savePreserveLogs).toBeCalledWith(true);
+  });
+
   it("should handle filter", () => {
     const wrapper = shallow(<EvaluationsPanel />);
     wrapper.find(InputGroup).invoke("onChange")({
diff --git a/src/panel/components/EvaluationsPanel.tsx b/src/panel/components/EvaluationsPanel.tsx
index 339aa80..f3a85a9 100644
--- a/src/panel/components/EvaluationsPanel.tsx
+++ b/src/panel/components/EvaluationsPanel.tsx
@@ -10,9 +10,15 @@ import classNames from "classnames";
 import { PanelSelector } from "./PanelSelector";
 import { useEvaluationsContext } from "../libs/EvaluationsContext";
 import { PropList, PropItem } from "./PropList";
+import { Storage } from "../libs/Storage";
 
 export function EvaluationsPanel(): React.ReactElement {
-  const { evaluations, setEvaluations } = useEvaluationsContext();
+  const {
+    evaluations,
+    setEvaluations,
+    preserveLogs,
+    savePreserveLogs,
+  } = useEvaluationsContext();
   const [stringWrap, setStringWrap] = React.useState(false);
   const [q, setQ] = React.useState<string>();
 
@@ -43,6 +49,17 @@ export function EvaluationsPanel(): React.ReactElement {
     []
   );
 
+  const handleToggleLogs = React.useCallback(
+    (event: React.FormEvent<HTMLInputElement>) => {
+      savePreserveLogs((event.target as HTMLInputElement).checked);
+      Storage.setItem(
+        "preserveLogs",
+        (event.target as HTMLInputElement).checked
+      );
+    },
+    []
+  );
+
   return (
     <div
       className={classNames("panel evaluations-panel", {
@@ -65,6 +82,11 @@ export function EvaluationsPanel(): React.ReactElement {
           />
         </div>
         <div className="toolbar-group">
+          <Switch
+            checked={preserveLogs}
+            label="Preserve logs"
+            onChange={handleToggleLogs}
+          />
           <Switch
             checked={stringWrap}
             label="String Wrap"
diff --git a/src/panel/components/Layout.spec.tsx b/src/panel/components/Layout.spec.tsx
index 790bc2b..88d9514 100644
--- a/src/panel/components/Layout.spec.tsx
+++ b/src/panel/components/Layout.spec.tsx
@@ -126,4 +126,32 @@ describe("Layout", () => {
     expect(wrapper.text()).toBe("TransformationsPanel (1)");
     wrapper.unmount();
   });
+
+  it.each([[undefined], [false]])(
+    "should work for new transformations with locationChange ",
+    async (value) => {
+      storageGetItem.mockImplementation((key) => {
+        if (key === "preserveLogs") {
+          return value;
+        } else {
+          return "Transformations";
+        }
+      });
+      const wrapper = mount(<Layout />);
+      await act(async () => {
+        window.postMessage(
+          {
+            source: MESSAGE_SOURCE_HOOK,
+            payload: {
+              type: "locationChange",
+            },
+          },
+          location.origin
+        );
+        await new Promise((resolve) => setTimeout(resolve));
+      });
+      expect(wrapper.text()).toBe("TransformationsPanel (0)");
+      wrapper.unmount();
+    }
+  );
 });
diff --git a/src/panel/components/Layout.tsx b/src/panel/components/Layout.tsx
index 01d0c8a..a4b3eea 100644
--- a/src/panel/components/Layout.tsx
+++ b/src/panel/components/Layout.tsx
@@ -21,6 +21,9 @@ export function Layout(): React.ReactElement {
     Storage.getItem("selectedPanel") ?? "Bricks"
   );
   const [evaluations, setEvaluations] = React.useState<Evaluation[]>([]);
+  const [preserveLogs, savePreserveLogs] = React.useState<boolean>(
+    Storage.getItem("preserveLogs") ?? true
+  );
   const [transformations, setTransformations] = React.useState<
     Transformation[]
   >([]);
@@ -33,6 +36,12 @@ export function Layout(): React.ReactElement {
         ((data = event.data.payload), data?.type === "evaluation")
       ) {
         setEvaluations((prev) => prev.concat(hydrate(data.payload, data.repo)));
+      } else if (
+        event.data?.source === MESSAGE_SOURCE_HOOK &&
+        ((data = event.data.payload), data?.type === "locationChange") &&
+        !(Storage.getItem("preserveLogs") ?? true)
+      ) {
+        setEvaluations([]);
       }
     }
     window.addEventListener("message", onMessage);
@@ -49,6 +58,12 @@ export function Layout(): React.ReactElement {
         setTransformations((prev) =>
           prev.concat(hydrate(data.payload, data.repo))
         );
+      } else if (
+        event.data?.source === MESSAGE_SOURCE_HOOK &&
+        ((data = event.data.payload), data?.type === "locationChange") &&
+        !(Storage.getItem("preserveLogs") ?? true)
+      ) {
+        setTransformations([]);
       }
     }
     window.addEventListener("message", onMessage);
@@ -73,13 +88,23 @@ export function Layout(): React.ReactElement {
         >
           {selectedPanel === "Evaluations" ? (
             <EvaluationsContext.Provider
-              value={{ evaluations, setEvaluations }}
+              value={{
+                evaluations,
+                setEvaluations,
+                preserveLogs,
+                savePreserveLogs,
+              }}
             >
               <EvaluationsPanel />
             </EvaluationsContext.Provider>
           ) : selectedPanel === "Transformations" ? (
             <TransformationsContext.Provider
-              value={{ transformations, setTransformations }}
+              value={{
+                transformations,
+                setTransformations,
+                preserveLogs,
+                savePreserveLogs,
+              }}
             >
               <TransformationsPanel />
             </TransformationsContext.Provider>
diff --git a/src/panel/components/TransformationsPanel.spec.tsx b/src/panel/components/TransformationsPanel.spec.tsx
index b69dd67..2daa309 100644
--- a/src/panel/components/TransformationsPanel.spec.tsx
+++ b/src/panel/components/TransformationsPanel.spec.tsx
@@ -6,6 +6,7 @@ import { useTransformationsContext } from "../libs/TransformationsContext";
 
 jest.mock("../libs/TransformationsContext");
 const setTransformations = jest.fn();
+const savePreserveLogs = jest.fn();
 (useTransformationsContext as jest.Mock).mockReturnValue({
   transformations: [
     {
@@ -21,6 +22,7 @@ const setTransformations = jest.fn();
     },
   ],
   setTransformations,
+  savePreserveLogs,
 });
 
 describe("TransformationsPanel", () => {
@@ -36,7 +38,7 @@ describe("TransformationsPanel", () => {
   it("should toggle string-wrap", () => {
     const wrapper = shallow(<TransformationsPanel />);
     expect(wrapper.hasClass("string-wrap")).toBe(false);
-    wrapper.find(Switch).invoke("onChange")({
+    wrapper.find("[label='String Wrap']").invoke("onChange")({
       target: {
         checked: true,
       },
@@ -44,6 +46,16 @@ describe("TransformationsPanel", () => {
     expect(wrapper.hasClass("string-wrap")).toBe(true);
   });
 
+  it("should toggle preserveLogs", () => {
+    const wrapper = shallow(<TransformationsPanel />);
+    wrapper.find("[label='Preserve logs']").invoke("onChange")({
+      target: {
+        checked: true,
+      },
+    } as any);
+    expect(savePreserveLogs).toBeCalledWith(true);
+  });
+
   it("should handle clear", () => {
     const wrapper = shallow(<TransformationsPanel />);
     wrapper.find(Button).invoke("onClick")(null);
diff --git a/src/panel/components/TransformationsPanel.tsx b/src/panel/components/TransformationsPanel.tsx
index 45549b6..f4aa5e4 100644
--- a/src/panel/components/TransformationsPanel.tsx
+++ b/src/panel/components/TransformationsPanel.tsx
@@ -4,9 +4,15 @@ import classNames from "classnames";
 import { PanelSelector } from "./PanelSelector";
 import { useTransformationsContext } from "../libs/TransformationsContext";
 import { PropItem } from "./PropList";
+import { Storage } from "../libs/Storage";
 
 export function TransformationsPanel(): React.ReactElement {
-  const { transformations, setTransformations } = useTransformationsContext();
+  const {
+    transformations,
+    setTransformations,
+    preserveLogs,
+    savePreserveLogs,
+  } = useTransformationsContext();
   const [stringWrap, setStringWrap] = React.useState(false);
 
   const handleClear = React.useCallback(() => {
@@ -20,6 +26,17 @@ export function TransformationsPanel(): React.ReactElement {
     []
   );
 
+  const handleToggleLogs = React.useCallback(
+    (event: React.FormEvent<HTMLInputElement>) => {
+      savePreserveLogs((event.target as HTMLInputElement).checked);
+      Storage.setItem(
+        "preserveLogs",
+        (event.target as HTMLInputElement).checked
+      );
+    },
+    []
+  );
+
   return (
     <div
       className={classNames("panel transformations-panel", {
@@ -36,6 +53,11 @@ export function TransformationsPanel(): React.ReactElement {
           </ButtonGroup>
         </div>
         <div className="toolbar-group">
+          <Switch
+            checked={preserveLogs}
+            label="Preserve logs"
+            onChange={handleToggleLogs}
+          />
           <Switch
             checked={stringWrap}
             label="String Wrap"
diff --git a/src/panel/libs/EvaluationsContext.ts b/src/panel/libs/EvaluationsContext.ts
index 26a0486..9c6258f 100644
--- a/src/panel/libs/EvaluationsContext.ts
+++ b/src/panel/libs/EvaluationsContext.ts
@@ -4,6 +4,8 @@ import { Evaluation } from "../../shared/interfaces";
 export interface ContextOfEvaluations {
   evaluations?: Evaluation[];
   setEvaluations?: React.Dispatch<React.SetStateAction<Evaluation[]>>;
+  preserveLogs?: boolean;
+  savePreserveLogs?: React.Dispatch<React.SetStateAction<boolean>>;
 }
 
 export const EvaluationsContext = React.createContext<ContextOfEvaluations>({});
diff --git a/src/panel/libs/TransformationsContext.ts b/src/panel/libs/TransformationsContext.ts
index ad996cb..f9ddba4 100644
--- a/src/panel/libs/TransformationsContext.ts
+++ b/src/panel/libs/TransformationsContext.ts
@@ -4,6 +4,8 @@ import { Transformation } from "../../shared/interfaces";
 export interface ContextOfTransformations {
   transformations?: Transformation[];
   setTransformations?: React.Dispatch<React.SetStateAction<Transformation[]>>;
+  preserveLogs?: boolean;
+  savePreserveLogs?: React.Dispatch<React.SetStateAction<boolean>>;
 }
 
 export const TransformationsContext = React.createContext<