diff --git a/lib/obp60task/OBPDataOperations.cpp b/lib/obp60task/OBPDataOperations.cpp
index 562b1f6..c968e11 100644
--- a/lib/obp60task/OBPDataOperations.cpp
+++ b/lib/obp60task/OBPDataOperations.cpp
@@ -135,7 +135,7 @@ bool CalibrationData::calibrateInstance(GwApi::BoatValue* boatDataValue)
     double dataValue = 0;
     std::string format = "";
 
-    // we test this earlier, but for safety reason ...
+    // we test this earlier, but for safety reasons ...
     if (calibrationMap.find(instance) == calibrationMap.end()) {
         LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s not in calibration list", instance.c_str());
         return false;
@@ -151,7 +151,7 @@ bool CalibrationData::calibrateInstance(GwApi::BoatValue* boatDataValue)
     slope = calibrationMap[instance].slope;
     dataValue = boatDataValue->value;
     format = boatDataValue->getFormat().c_str();
-    LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s: value: %f, format: %s", instance.c_str(), dataValue, format.c_str());
+    // LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s: value: %f, format: %s", instance.c_str(), dataValue, format.c_str());
 
     if (format == "formatWind") { // instance is of type angle
         dataValue = (dataValue * slope) + offset;
@@ -174,7 +174,7 @@ bool CalibrationData::calibrateInstance(GwApi::BoatValue* boatDataValue)
     calibrationMap[instance].value = dataValue; // store the calibrated value in the list
     calibrationMap[instance].isCalibrated = true;
 
-    LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s: Offset: %f, Slope: %f, Result: %f", instance.c_str(), offset, slope, calibrationMap[instance].value);
+    // LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s: Offset: %f, Slope: %f, Result: %f", instance.c_str(), offset, slope, calibrationMap[instance].value);
     return true;
 }
 
@@ -189,7 +189,7 @@ bool CalibrationData::smoothInstance(GwApi::BoatValue* boatDataValue)
 
     // we test this earlier, but for safety reason ...
     if (calibrationMap.find(instance) == calibrationMap.end()) {
-        LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s not in calibration list", instance.c_str());
+        // LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s not in calibration list", instance.c_str());
         return false;
     }
 
@@ -211,7 +211,7 @@ bool CalibrationData::smoothInstance(GwApi::BoatValue* boatDataValue)
     calibrationMap[instance].value = dataValue; // store the smoothed value in the list
     calibrationMap[instance].isCalibrated = true;
 
-    LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s: smooth: %f, oldValue: %f, result: %f", instance.c_str(), smoothFactor, oldValue, calibrationMap[instance].value);
+    // LOG_DEBUG(GwLog::DEBUG, "BoatDataCalibration: %s: smooth: %f, oldValue: %f, result: %f", instance.c_str(), smoothFactor, oldValue, calibrationMap[instance].value);
 
     return true;
 }
@@ -241,7 +241,7 @@ void HstryBuf::add(double value)
 {
     if (value >= hstryMin && value <= hstryMax) {
         hstryBuf.add(value);
-        LOG_DEBUG(GwLog::DEBUG, "HstryBuf::add:  name: %s, value: %.3f", hstryBuf.getName(), value);
+        // LOG_DEBUG(GwLog::DEBUG, "HstryBuf::add:  name: %s, value: %.3f", hstryBuf.getName(), value);
     }
 }
 
@@ -405,7 +405,7 @@ void WindUtils::calcTwdSA(const double* AWA, const double* AWS,
     double stw = -*STW;
     addPolar(AWD, AWS, CTW, &stw, TWD, TWS);
 
-    // Normalize TWD and TWA to 0-360°/2PI
+    // Normalize TWD to [0..360°] (2PI) and TWA to [-180..180] (PI)
     *TWD = to2PI(*TWD);
     *TWA = toPI(*TWD - *HDT);
 }
@@ -487,8 +487,8 @@ bool WindUtils::addWinds()
     double hdtVal = hdtBVal->valid ? hdtBVal->value : DBL_MAX;
     double hdmVal = hdmBVal->valid ? hdmBVal->value : DBL_MAX;
     double varVal = varBVal->valid ? varBVal->value : DBL_MAX;
-    LOG_DEBUG(GwLog::DEBUG, "WindUtils:addWinds: AWA %.1f, AWS %.1f, COG %.1f, STW %.1f, SOG %.2f, HDT %.1f, HDM %.1f, VAR %.1f", awaBVal->value * RAD_TO_DEG, awsBVal->value * 3.6 / 1.852,
-        cogBVal->value * RAD_TO_DEG, stwBVal->value * 3.6 / 1.852, sogBVal->value * 3.6 / 1.852, hdtBVal->value * RAD_TO_DEG, hdmBVal->value * RAD_TO_DEG, varBVal->value * RAD_TO_DEG);
+    //LOG_DEBUG(GwLog::DEBUG, "WindUtils:addWinds: AWA %.1f, AWS %.1f, COG %.1f, STW %.1f, SOG %.2f, HDT %.1f, HDM %.1f, VAR %.1f", awaBVal->value * RAD_TO_DEG, awsBVal->value * 3.6 / 1.852,
+    //     cogBVal->value * RAD_TO_DEG, stwBVal->value * 3.6 / 1.852, sogBVal->value * 3.6 / 1.852, hdtBVal->value * RAD_TO_DEG, hdmBVal->value * RAD_TO_DEG, varBVal->value * RAD_TO_DEG);
 
     // Check if TWD can be calculated from TWA and HDT/HDM
     if (twaBVal->valid) {
@@ -528,8 +528,8 @@ bool WindUtils::addWinds()
             }
         }
     }
-    LOG_DEBUG(GwLog::DEBUG, "WindUtils:addWinds: twCalculated %d, TWD %.1f, TWA %.1f, TWS %.2f kn, AWD: %.1f", twCalculated, twdBVal->value * RAD_TO_DEG,
-        twaBVal->value * RAD_TO_DEG, twsBVal->value * 3.6 / 1.852, awdBVal->value * RAD_TO_DEG);
+    // LOG_DEBUG(GwLog::DEBUG, "WindUtils:addWinds: twCalculated %d, TWD %.1f, TWA %.1f, TWS %.2f kn, AWD: %.1f", twCalculated, twdBVal->value * RAD_TO_DEG,
+    //     twaBVal->value * RAD_TO_DEG, twsBVal->value * 3.6 / 1.852, awdBVal->value * RAD_TO_DEG);
 
     return twCalculated;
 }
diff --git a/lib/obp60task/OBPcharts.cpp b/lib/obp60task/OBPcharts.cpp
index e15fc83..8ae38ec 100644
--- a/lib/obp60task/OBPcharts.cpp
+++ b/lib/obp60task/OBPcharts.cpp
@@ -161,8 +161,8 @@ bool Chart::setChartDimensions(const char direction, const int8_t size)
             break;
         }
     }
-    LOG_DEBUG(GwLog::ERROR, "obp60:setChartDimensions %s: direction: %c, size: %d, dWidth: %d, dHeight: %d, timAxis: %d, valAxis: %d, cRoot{%d, %d}, top: %d, bottom: %d, hGap: %d, vGap: %d",
-        dataBuf.getName(), direction, size, dWidth, dHeight, timAxis, valAxis, cRoot.x, cRoot.y, top, bottom, hGap, vGap);
+    //LOG_DEBUG(GwLog::DEBUG, "obp60:setChartDimensions %s: direction: %c, size: %d, dWidth: %d, dHeight: %d, timAxis: %d, valAxis: %d, cRoot{%d, %d}, top: %d, bottom: %d, hGap: %d, vGap: %d",
+    //     dataBuf.getName(), direction, size, dWidth, dHeight, timAxis, valAxis, cRoot.x, cRoot.y, top, bottom, hGap, vGap);
     return true;
 }
 
@@ -176,7 +176,7 @@ void Chart::drawChrt(const char chrtDir, const int8_t chrtIntv, GwApi::BoatValue
     // LOG_DEBUG(GwLog::DEBUG, "Chart:drawChart: min: %.1f, mid: %.1f, max: %.1f, rng: %.1f", chrtMin, chrtMid, chrtMax, chrtRng);
     calcChrtBorders(chrtMin, chrtMid, chrtMax, chrtRng);
     chrtScale = double(valAxis) / chrtRng; // Chart scale: pixels per value step
-    LOG_DEBUG(GwLog::DEBUG, "Chart:drawChart: min: %.1f, mid: %.1f, max: %.1f, rng: %.1f", chrtMin, chrtMid, chrtMax, chrtRng);
+    // LOG_DEBUG(GwLog::DEBUG, "Chart:drawChart: min: %.1f, mid: %.1f, max: %.1f, rng: %.1f", chrtMin, chrtMid, chrtMax, chrtRng);
 
     // Do we have valid buffer data?
     if (dataBuf.getMax() == dbMAX_VAL) { // only <MAX_VAL> values in buffer -> no valid wind data available
@@ -261,8 +261,8 @@ void Chart::calcChrtBorders(double& rngMin, double& rngMid, double& rngMax, doub
                 }
                 recalcRngMid = false; // Reset flag for <rngMid> determination
 
-                LOG_DEBUG(GwLog::DEBUG, "calcChrtRange: rngMin: %.1f°, rngMid: %.1f°, rngMax: %.1f°, rng: %.1f°, rngStep: %.1f°", rngMin * RAD_TO_DEG, rngMid * RAD_TO_DEG, rngMax * RAD_TO_DEG,
-                    rng * RAD_TO_DEG, rngStep * RAD_TO_DEG);
+                // LOG_DEBUG(GwLog::DEBUG, "calcChrtRange: rngMin: %.1f°, rngMid: %.1f°, rngMax: %.1f°, rng: %.1f°, rngStep: %.1f°", rngMin * RAD_TO_DEG, rngMid * RAD_TO_DEG, rngMax * RAD_TO_DEG,
+                //     rng * RAD_TO_DEG, rngStep * RAD_TO_DEG);
             }
         }
 
@@ -287,8 +287,8 @@ void Chart::calcChrtBorders(double& rngMin, double& rngMid, double& rngMax, doub
 
         rng = halfRng * 2.0;
 
-        LOG_DEBUG(GwLog::DEBUG, "calcChrtBorders: rngMin: %.1f°, rngMid: %.1f°, rngMax: %.1f°, tmpRng: %.1f°, rng: %.1f°, rngStep: %.1f°", rngMin * RAD_TO_DEG, rngMid * RAD_TO_DEG, rngMax * RAD_TO_DEG,
-            tmpRng * RAD_TO_DEG, rng * RAD_TO_DEG, rngStep * RAD_TO_DEG);
+        // LOG_DEBUG(GwLog::DEBUG, "calcChrtBorders: rngMin: %.1f°, rngMid: %.1f°, rngMax: %.1f°, tmpRng: %.1f°, rng: %.1f°, rngStep: %.1f°", rngMin * RAD_TO_DEG, rngMid * RAD_TO_DEG, rngMax * RAD_TO_DEG,
+        //     tmpRng * RAD_TO_DEG, rng * RAD_TO_DEG, rngStep * RAD_TO_DEG);
 
     } else { // chart data is of any other type
 
@@ -320,8 +320,8 @@ void Chart::calcChrtBorders(double& rngMin, double& rngMid, double& rngMax, doub
         rngMid = (rngMin + rngMax) / 2.0;
         rng = rngMax - rngMin;
 
-        LOG_DEBUG(GwLog::DEBUG, "calcChrtRange-end: currMinVal: %.1f, currMaxVal: %.1f, rngMin: %.1f, rngMid: %.1f, rngMax: %.1f, rng: %.1f, rngStep: %.1f, zeroValue: %.1f, dbMIN_VAL: %.1f",
-            currMinVal, currMaxVal, rngMin, rngMid, rngMax, rng, rngStep, zeroValue, dbMIN_VAL);
+        // LOG_DEBUG(GwLog::DEBUG, "calcChrtRange-end: currMinVal: %.1f, currMaxVal: %.1f, rngMin: %.1f, rngMid: %.1f, rngMax: %.1f, rng: %.1f, rngStep: %.1f, zeroValue: %.1f, dbMIN_VAL: %.1f",
+        //     currMinVal, currMaxVal, rngMin, rngMid, rngMax, rng, rngStep, zeroValue, dbMIN_VAL);
     }
 }
 
@@ -397,6 +397,8 @@ void Chart::drawChartLines(const char direction, const int8_t chrtIntv, const do
             }
             break;
         }
+
+        taskYIELD(); // we run for 50-150ms; be polite to other tasks with same priority
     }
 }
 
@@ -656,7 +658,7 @@ void Chart::prntHorizChartThreeValueAxisLabel(const GFXfont* font)
 
     if (font == &Ubuntu_Bold10pt8b) {
         xOffset = 39;
-        yOffset = 15;
+        yOffset = 16;
     } else if (font == &Ubuntu_Bold12pt8b) {
         xOffset = 51;
         yOffset = 18;
@@ -718,7 +720,7 @@ void Chart::prntHorizChartMultiValueAxisLabel(const GFXfont* font)
     axSlots = valAxis / static_cast<double>(VALAXIS_STEP); // number of axis labels (and we want to have a double calculation, no integer)
     axIntv = chrtRng / axSlots;
     axLabel = chrtMin + axIntv;
-    LOG_DEBUG(GwLog::DEBUG, "Chart::printHorizMultiValueAxisLabel: chrtRng: %.2f, th-chrtRng: %.2f, axSlots: %.2f, axIntv: %.2f, axLabel: %.2f, chrtMin: %.2f, chrtMid: %.2f, chrtMax: %.2f", chrtRng, this->chrtRng, axSlots, axIntv, axLabel, this->chrtMin, chrtMid, chrtMax);
+    // LOG_DEBUG(GwLog::DEBUG, "Chart::printHorizMultiValueAxisLabel: chrtRng: %.2f, th-chrtRng: %.2f, axSlots: %.2f, axIntv: %.2f, axLabel: %.2f, chrtMin: %.2f, chrtMid: %.2f, chrtMax: %.2f", chrtRng, this->chrtRng, axSlots, axIntv, axLabel, this->chrtMin, chrtMid, chrtMax);
 
     int loopStrt, loopEnd, loopStp;
     if (chrtDataFmt == SPEED || chrtDataFmt == TEMPERATURE || chrtDataFmt == OTHER) {
diff --git a/lib/obp60task/PageAnchor.cpp b/lib/obp60task/PageAnchor.cpp
index b98fef0..11ce083 100644
--- a/lib/obp60task/PageAnchor.cpp
+++ b/lib/obp60task/PageAnchor.cpp
@@ -269,7 +269,6 @@ private:
 
     void displayModeConfig(PageData &pageData) {
 
-
         getdisplay().setTextColor(commonData->fgcolor);
         getdisplay().setFont(&Ubuntu_Bold12pt8b);
         getdisplay().setCursor(8, 48);
diff --git a/lib/obp60task/PageOneValue.cpp b/lib/obp60task/PageOneValue.cpp
index a5c0f9c..78cc6e6 100644
--- a/lib/obp60task/PageOneValue.cpp
+++ b/lib/obp60task/PageOneValue.cpp
@@ -162,9 +162,13 @@ public:
         constexpr int ZOOM_KEY = 1;
 #endif
 
-        if (dataHstryBuf) { // show "Mode" key only if chart supported boat data type is available
+        if (dataHstryBuf) { // show "Mode" key only if chart-supported boat data type is available
             commonData->keydata[0].label = "MODE";
-            commonData->keydata[ZOOM_KEY].label = "ZOOM";
+            if (pageMode != VALUE) { // show "ZOOM" key only if chart is visible
+                commonData->keydata[ZOOM_KEY].label = "ZOOM";
+            } else {
+                commonData->keydata[ZOOM_KEY].label = "";
+            }
         } else {
             commonData->keydata[0].label = "";
             commonData->keydata[ZOOM_KEY].label = "";
@@ -189,14 +193,15 @@ public:
                     pageMode = VALUE;
                     break;
                 }
+                setupKeys(); // Adjust key definition depending on <pageMode> and chart-supported boat data type
                 return 0; // Commit the key
             }
 
-            // Set time frame to show for history chart
+            // Set time frame to show for chart
 #if defined BOARD_OBP60S3
-            if (key == 5) {
+            if (key == 5  && pageMode != VALUE) {
 #elif defined BOARD_OBP40S3
-            if (key == 2) {
+            if (key == 2  && pageMode != VALUE) {
 #endif
                 if (dataIntv == 1) {
                     dataIntv = 2;
@@ -247,7 +252,7 @@ public:
             }
         }
 
-        setupKeys(); // adjust <mode> key depending on chart supported boat data type
+        setupKeys(); // Adjust key definition depending on <pageMode> and chart-supported boat data type
     }
 
     int displayPage(PageData& pageData)
diff --git a/lib/obp60task/PageTwoValues.cpp b/lib/obp60task/PageTwoValues.cpp
index 323cbcb..5990656 100644
--- a/lib/obp60task/PageTwoValues.cpp
+++ b/lib/obp60task/PageTwoValues.cpp
@@ -114,7 +114,7 @@ private:
         }
 
         if (numValues == 2 && mode == FULL) { // print line only, if we want to show 2 data values
-            getdisplay().fillRect(0, 145, width, 3, commonData->fgcolor);             // Horizontal line 3 pix
+            getdisplay().fillRect(0, 145, width, 3, commonData->fgcolor); // Horizontal line 3 pix
         }
     }
 
@@ -149,7 +149,11 @@ public:
 
         if (dataHstryBuf[0] || dataHstryBuf[1]) { // show "Mode" key only if at least 1 chart supported boat data type is available
             commonData->keydata[0].label = "MODE";
-            commonData->keydata[ZOOM_KEY].label = "ZOOM";
+            if (pageMode != VALUES) { // show "ZOOM" key only if chart is visible
+                commonData->keydata[ZOOM_KEY].label = "ZOOM";
+            } else {
+                commonData->keydata[ZOOM_KEY].label = "";
+            }
         } else {
             commonData->keydata[0].label = "";
             commonData->keydata[ZOOM_KEY].label = "";
@@ -191,14 +195,15 @@ public:
                     pageMode = VALUES;
                     break;
                 }
+                setupKeys(); // Adjust key definition depending on <pageMode> and chart-supported boat data type
                 return 0; // Commit the key
             }
 
-            // Set time frame to show for history chart
+            // Set time frame to show for chart
 #if defined BOARD_OBP60S3
-            if (key == 5) {
+            if (key == 5 && pageMode != VALUES) {
 #elif defined BOARD_OBP40S3
-            if (key == 2) {
+            if (key == 2  && pageMode != VALUES) {
 #endif
                 if (dataIntv == 1) {
                     dataIntv = 2;
@@ -251,7 +256,7 @@ public:
             }
         }
 
-        setupKeys(); // adjust <mode> key depending on chart supported boat data type
+        setupKeys(); // Adjust key definition depending on <pageMode> and chart-supported boat data type
     }
 
     int displayPage(PageData& pageData)
@@ -285,13 +290,13 @@ public:
             showData(bValue, FULL);
 
         } else if (pageMode == VAL1_CHART) { // show data value 1 and chart
-            showData({bValue[0]}, HALF);
+            showData({ bValue[0] }, HALF);
             if (dataChart[0]) {
                 dataChart[0]->showChrt(HORIZONTAL, HALF_SIZE_BOTTOM, dataIntv, NO_PRNT_NAME, NO_PRNT_VALUE, *bValue[0]);
             }
 
         } else if (pageMode == VAL2_CHART) { // show data value 2 and chart
-            showData({bValue[1]}, HALF);
+            showData({ bValue[1] }, HALF);
             if (dataChart[1]) {
                 dataChart[1]->showChrt(HORIZONTAL, HALF_SIZE_BOTTOM, dataIntv, NO_PRNT_NAME, NO_PRNT_VALUE, *bValue[1]);
             }
diff --git a/lib/obp60task/PageWindPlot.cpp b/lib/obp60task/PageWindPlot.cpp
index f5745f7..da948c2 100644
--- a/lib/obp60task/PageWindPlot.cpp
+++ b/lib/obp60task/PageWindPlot.cpp
@@ -196,7 +196,7 @@ public:
     int displayPage(PageData& pageData)
     {
         LOG_DEBUG(GwLog::LOG, "Display PageWindPlot");
-        ulong pageTime = millis();
+        // ulong pageTime = millis();
 
         if (showTruW != oldShowTruW) {
 
@@ -243,7 +243,7 @@ public:
             }
         }
 
-        LOG_DEBUG(GwLog::DEBUG, "PageWindPlot: page time %ldms", millis() - pageTime);
+        // LOG_DEBUG(GwLog::DEBUG, "PageWindPlot: page time %ldms", millis() - pageTime);
         return PAGE_UPDATE;
     }
 };
diff --git a/lib/obp60task/config_obp40.json b/lib/obp60task/config_obp40.json
index 508c3f5..22e9a50 100644
--- a/lib/obp60task/config_obp40.json
+++ b/lib/obp60task/config_obp40.json
@@ -19,6 +19,28 @@
             "obp40": "true"
         }
     },
+    {
+        "name": "mapServer",
+        "label": "map server",
+        "type": "string",
+        "default": "",
+        "description": "Server for converting map tiles. Use only one hostname or IP address",
+        "category": "wifi client",
+        "capabilities": {
+            "obp40": "true"
+        }
+    },
+    {
+        "name": "mapTilePath",
+        "label": "map tile path",
+        "type": "string",
+        "default": "map.php",
+        "description": "Path to converter access e.g. index.php or map.php",
+        "category": "wifi client",
+        "capabilities": {
+            "obp40": "true"
+        }
+    },
     {
         "name": "timeZone",
         "label": "Time Zone",
@@ -1862,7 +1884,7 @@
         "description": "Wind source for page 1: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 1",
         "capabilities": {
@@ -2185,7 +2207,7 @@
         "description": "Wind source for page 2: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 2",
         "capabilities": {
@@ -2499,7 +2521,7 @@
         "description": "Wind source for page 3: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 3",
         "capabilities": {
@@ -2804,7 +2826,7 @@
         "description": "Wind source for page 4: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 4",
         "capabilities": {
@@ -3100,7 +3122,7 @@
         "description": "Wind source for page 5: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 5",
         "capabilities": {
@@ -3387,7 +3409,7 @@
         "description": "Wind source for page 6: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 6",
         "capabilities": {
@@ -3665,7 +3687,7 @@
         "description": "Wind source for page 7: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 7",
         "capabilities": {
@@ -3934,7 +3956,7 @@
         "description": "Wind source for page 8: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 8",
         "capabilities": {
@@ -4194,7 +4216,7 @@
         "description": "Wind source for page 9: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 9",
         "capabilities": {
@@ -4445,7 +4467,7 @@
         "description": "Wind source for page 10: [true|apparent]",
         "list": [
             "True wind",
-            "apparent wind"
+            "Apparent wind"
         ],
         "category": "OBP40 Page 10",
         "capabilities": {
diff --git a/lib/obp60task/extra_task.py b/lib/obp60task/extra_task.py
index 28e9980..66ee3b1 100644
--- a/lib/obp60task/extra_task.py
+++ b/lib/obp60task/extra_task.py
@@ -1,12 +1,21 @@
 # PlatformIO extra script for obp60task
 
+import subprocess
+
+patching = False
+
 epdtype = "unknown"
 pcbvers = "unknown"
 for x in env["BUILD_FLAGS"]:
-    if x.startswith("-D HARDWARE_"):
+    if not x.startswith('-D'):
+        continue
+    opt = x[2:].strip()
+    if opt.startswith("HARDWARE_"):
         pcbvers = x.split('_')[1]
-    if x.startswith("-D DISPLAY_"):
+    elif opt.startswith("DISPLAY_"):
         epdtype = x.split('_')[1]
+    elif opt == 'ENABLE_PATCHES':
+        patching = True
 
 propfilename = os.path.join(env["PROJECT_LIBDEPS_DIR"], env["PIOENV"], "GxEPD2/library.properties")
 properties = {}
@@ -28,3 +37,20 @@ except:
 env["CPPDEFINES"].extend([("BOARD", env["BOARD"]), ("EPDTYPE", epdtype), ("PCBVERS", pcbvers), ("GXEPD2VERS", gxepd2vers)])
 
 print("added hardware info to CPPDEFINES")
+
+if patching:
+    # apply patches to gateway code
+    print("applying gateway patches")
+    patchdir = os.path.join(os.path.dirname(script), "patches")
+    if not os.path.isdir(patchdir):
+        print("patchdir not found, no patches applied")
+    else:
+        patchfiles = [f for f in os.listdir(patchdir)]
+        for p in patchfiles:
+            patch = os.path.join(patchdir, p)
+            print(f"applying {patch}")
+            res = subprocess.run(["git", "apply", patch], capture_output=True, text=True)
+            if res.returncode != 0:
+                print(res.stderr)
+        else:
+            print("no patches found")
diff --git a/lib/obp60task/platformio.ini b/lib/obp60task/platformio.ini
index 0788b7a..dc510f2 100644
--- a/lib/obp60task/platformio.ini
+++ b/lib/obp60task/platformio.ini
@@ -60,6 +60,7 @@ build_flags=
 #    -D DISPLAY_GYE042A87            #alternativ E-Ink display from Genyo Optical, R10 2.2 ohm - medium 
 #    -D DISPLAY_SE0420NQ04           #alternativ E-Ink display from SID Technology, R10 2.2 ohm - bad (burn in effects)
 #    -D DISPLAY_ZJY400300-042CAAMFGN #alternativ E-Ink display from ZZE Technology, R10 2.2 ohm - very good
+#    -D ENABLE_PATCHES               #enable patching of gateway code
     ${env.build_flags}
 #CONFIG_ESP_TASK_WDT_TIMEOUT_S = 10 #Task Watchdog timeout period (seconds) [1...60] 5 default
 upload_port = /dev/ttyACM0          #OBP60 download via USB-C direct
@@ -112,6 +113,7 @@ build_flags=
     #-D DISPLAY_ZJY400300-042CAAMFGN #alternativ E-Ink display from ZZE Technology, R10 2.2 ohm - very good   
     -D LIPO_ACCU_1200               #Hardware extension, LiPo accu 3,7V 1200mAh
     -D VOLTAGE_SENSOR               #Hardware extension, LiPo voltage sensor with two resistors
+    #-D ENABLE_PATCHES               #enable patching of gateway code
     ${env.build_flags}
 upload_port = /dev/ttyUSB0          #OBP40 download via external USB/Serail converter
 upload_protocol = esptool           #firmware upload via USB OTG seriell, by first upload need to set the ESP32-S3 in the upload mode with shortcut GND to Pin27
diff --git a/lib/obp60task/run_install_tools b/lib/obp60task/run_install_tools
index 9c4667e..c46c10c 100644
--- a/lib/obp60task/run_install_tools
+++ b/lib/obp60task/run_install_tools
@@ -8,6 +8,6 @@
 
 # Install tools
 echo "Installing tools"
-cd /workspace/esp32-nmea2000
+cd /workspaces/esp32-nmea2000
 pip3 install -U esptool
 pip3 install  platformio