diff --git a/.env.development b/.env.development
index dad8aa9..590c68a 100644
--- a/.env.development
+++ b/.env.development
@@ -6,6 +6,6 @@ NEXT_PUBLIC_USE_MOCK_BACKEND_LOOP_START=false
 NEXT_PUBLIC_EXPORT_STATIC=false
 NEXT_PUBLIC_USE_CGI=false
 # App-Versionsnummer
-NEXT_PUBLIC_APP_VERSION=1.6.656
+NEXT_PUBLIC_APP_VERSION=1.6.657
 NEXT_PUBLIC_CPL_MODE=json   # json (Entwicklungsumgebung) oder jsSimulatedProd (CPL ->CGI-Interface-Simulator) oder production (CPL-> CGI-Interface Platzhalter)
 
diff --git a/.env.production b/.env.production
index df60b08..1fba4cd 100644
--- a/.env.production
+++ b/.env.production
@@ -5,5 +5,5 @@ NEXT_PUBLIC_CPL_API_PATH=/CPL
 NEXT_PUBLIC_EXPORT_STATIC=true
 NEXT_PUBLIC_USE_CGI=true
 # App-Versionsnummer
-NEXT_PUBLIC_APP_VERSION=1.6.656
+NEXT_PUBLIC_APP_VERSION=1.6.657
 NEXT_PUBLIC_CPL_MODE=production
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07c4ba0..309112a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## [1.6.657] – 2025-07-28
+
+- deat: KVz anzeigen
+
+---
 ## [1.6.656] – 2025-07-28
 
 - fix: Chart Titel Isolationsmessung zu schleifenmessung
diff --git a/components/main/kabelueberwachung/kue705FO/Charts/IsoMeasurementChart/IsoChartActionBar.tsx b/components/main/kabelueberwachung/kue705FO/Charts/IsoMeasurementChart/IsoChartActionBar.tsx
index 255530f..6d99a43 100644
--- a/components/main/kabelueberwachung/kue705FO/Charts/IsoMeasurementChart/IsoChartActionBar.tsx
+++ b/components/main/kabelueberwachung/kue705FO/Charts/IsoMeasurementChart/IsoChartActionBar.tsx
@@ -237,10 +237,14 @@ const IsoChartActionBar: React.FC = () => {
           </div>
         </Listbox>
 
-        {/* Label für Isolationswiderstand - kein Dropdown mehr nötig */}
-        <div className="px-3 py-1 bg-gray-50 border rounded text-sm text-gray-700">
-          Isolationswiderstand
-        </div>
+        {/* ISO starten button*/}
+        <button
+          onClick={handleFetchData}
+          className="px-4 py-1 bg-littwin-blue text-white rounded text-sm"
+          disabled={isLoading}
+        >
+          ISO starten
+        </button>
 
         <button
           onClick={handleFetchData}
diff --git a/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx b/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx
index 4394e2e..d267e17 100644
--- a/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx
+++ b/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx
@@ -257,70 +257,15 @@ const LoopChartActionBar: React.FC = () => {
           </div>
         </Listbox>
         <div className="relative w-48"> </div>
-        {/* Dropdown  */}
-        {/* 
-                      <Listbox
-          value={selectedSlotType}
-          onChange={(value) => {
-            dispatch(setSelectedSlotType(value));
-            dispatch(
-              setChartTitle(
-                value === "isolationswiderstand"
-                  ? "Isolationsmessung"
-                  : "Schleifenmessung"
-              )
-            );
-          }}
+
+        {/* Schleife starten button*/}
+        <button
+          onClick={handleFetchData}
+          className="px-4 py-1 bg-littwin-blue text-white rounded text-sm"
+          disabled={isLoading}
         >
-          <div className="relative w-56">
-            <Listbox.Button className="w-full border px-3 py-1 rounded text-left bg-white flex justify-between items-center text-sm">
-              <span>
-                {
-                  {
-                    isolationswiderstand: "Isolationswiderstand",
-                    schleifenwiderstand: "Schleifenwiderstand",
-                  }[selectedSlotType]
-                }
-              </span>
-              <svg
-                className="w-5 h-5 text-gray-400"
-                viewBox="0 0 20 20"
-                fill="currentColor"
-              >
-                <path
-                  fillRule="evenodd"
-                  d="M5.23 7.21a.75.75 0 011.06.02L10 10.585l3.71-3.355a.75.75 0 111.02 1.1l-4.25 3.85a.75.75 0 01-1.02 0l-4.25-3.85a.75.75 0 01.02-1.06z"
-                  clipRule="evenodd"
-                />
-              </svg>
-            </Listbox.Button>
-            <Listbox.Options className="absolute z-50 mt-1 w-full border rounded bg-white shadow max-h-60 overflow-auto text-sm">
-              {["isolationswiderstand", "schleifenwiderstand"].map((type) => (
-                <Listbox.Option
-                  key={type}
-                  value={type}
-                  className={({ selected, active }) =>
-                    `px-4 py-1 cursor-pointer ${
-                      selected
-                        ? "bg-littwin-blue text-white"
-                        : active
-                        ? "bg-gray-200"
-                        : ""
-                    }`
-                  }
-                >
-                  {
-                    {
-                      isolationswiderstand: "Isolationswiderstand",
-                      schleifenwiderstand: "Schleifenwiderstand",
-                    }[type]
-                  }
-                </Listbox.Option>
-              ))}
-            </Listbox.Options>
-          </div>
-        </Listbox>
-              */}
+          RSL starten
+        </button>
 
         <button
           onClick={handleFetchData}
diff --git a/package-lock.json b/package-lock.json
index 48cba6b..68855fb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cpl-v4",
-  "version": "1.6.656",
+  "version": "1.6.657",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cpl-v4",
-      "version": "1.6.656",
+      "version": "1.6.657",
       "dependencies": {
         "@fontsource/roboto": "^5.1.0",
         "@headlessui/react": "^2.2.4",
diff --git a/package.json b/package.json
index 3ad65e9..fba8450 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cpl-v4",
-  "version": "1.6.656",
+  "version": "1.6.657",
   "private": true,
   "scripts": {
     "dev": "next dev",