diff --git a/sdrbase/resources/index.html b/sdrbase/resources/index.html
index 1c6401143..b0bf4ac9c 100644
--- a/sdrbase/resources/index.html
+++ b/sdrbase/resources/index.html
@@ -14268,7 +14268,7 @@ $(document).ready(function() {
                         <div class="pull-right"></div>
                         <div class="clearfix"></div>
                         <p></p>
-                        <p class="marked">Update device set settings on an existing preset.</p>
+                        <p class="marked">Update an existing preset with device set settings.</p>
                         <p></p>
                         <br />
                         <pre class="prettyprint language-html prettyprinted" data-type="put"><code><span class="pln">/sdrangel/preset</span></code></pre>
@@ -15011,7 +15011,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2017-12-20T00:50:19.499+01:00
+              Generated 2017-12-20T14:24:11.587+01:00
             </div>
           </div>
       </div>
diff --git a/sdrgui/webapi/webapiadaptergui.cpp b/sdrgui/webapi/webapiadaptergui.cpp
index d113007c2..4c7f983e7 100644
--- a/sdrgui/webapi/webapiadaptergui.cpp
+++ b/sdrgui/webapi/webapiadaptergui.cpp
@@ -379,7 +379,7 @@ int WebAPIAdapterGUI::instancePresetPatch(
     SWGSDRangel::SWGPresetIdentifier *presetIdentifier = query.getPreset();
     int nbDeviceSets = m_mainWindow.m_deviceUIs.size();
 
-    if (deviceSetIndex > nbDeviceSets)
+    if (deviceSetIndex >= nbDeviceSets)
     {
         *error.getMessage() = QString("There is no device set at index %1. Number of device sets is %2").arg(deviceSetIndex).arg(nbDeviceSets);
         return 404;
diff --git a/sdrsrv/maincore.cpp b/sdrsrv/maincore.cpp
index 8791a828a..1247bcb4a 100644
--- a/sdrsrv/maincore.cpp
+++ b/sdrsrv/maincore.cpp
@@ -35,6 +35,7 @@
 #include "maincore.h"
 
 MESSAGE_CLASS_DEFINITION(MainCore::MsgDeleteInstance, Message)
+MESSAGE_CLASS_DEFINITION(MainCore::MsgLoadPreset, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgAddDeviceSet, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgRemoveLastDeviceSet, Message)
 
@@ -100,6 +101,12 @@ bool MainCore::handleMessage(const Message& cmd)
         emit finished();
         return true;
     }
+    else if (MsgLoadPreset::match(cmd))
+    {
+        MsgLoadPreset& notif = (MsgLoadPreset&) cmd;
+        loadPresetSettings(notif.getPreset(), notif.getDeviceSetIndex());
+        return true;
+    }
     else if (MsgAddDeviceSet::match(cmd))
     {
         MsgAddDeviceSet& notif = (MsgAddDeviceSet&) cmd;
@@ -290,6 +297,29 @@ void MainCore::removeLastDevice()
     m_deviceSets.pop_back();
 }
 
+void MainCore::loadPresetSettings(const Preset* preset, int tabIndex)
+{
+	qDebug("MainCore::loadPresetSettings: preset [%s | %s]",
+		qPrintable(preset->getGroup()),
+		qPrintable(preset->getDescription()));
+
+	if (tabIndex >= 0)
+	{
+        DeviceSet *deviceSet = m_deviceSets[tabIndex];
+
+        if (deviceSet->m_deviceSourceEngine) // source device
+        {
+        	deviceSet->m_deviceSourceAPI->loadSourceSettings(preset);
+        	deviceSet->loadRxChannelSettings(preset, m_pluginManager->getPluginAPI());
+        }
+        else if (deviceSet->m_deviceSinkEngine) // sink device
+        {
+        	deviceSet->m_deviceSinkAPI->loadSinkSettings(preset);
+        	deviceSet->loadTxChannelSettings(preset, m_pluginManager->getPluginAPI());
+        }
+	}
+}
+
 void MainCore::savePresetSettings(Preset* preset, int tabIndex)
 {
     qDebug("MainCore::savePresetSettings: preset [%s | %s]",
diff --git a/sdrsrv/maincore.h b/sdrsrv/maincore.h
index 4131e902c..35311bd11 100644
--- a/sdrsrv/maincore.h
+++ b/sdrsrv/maincore.h
@@ -70,6 +70,29 @@ signals:
     void finished();
 
 private:
+    class MsgLoadPreset : public Message {
+        MESSAGE_CLASS_DECLARATION
+
+    public:
+        const Preset *getPreset() const { return m_preset; }
+        int getDeviceSetIndex() const { return m_deviceSetIndex; }
+
+        static MsgLoadPreset* create(const Preset *preset, int deviceSetIndex)
+        {
+            return new MsgLoadPreset(preset, deviceSetIndex);
+        }
+
+    private:
+        const Preset *m_preset;
+        int m_deviceSetIndex;
+
+        MsgLoadPreset(const Preset *preset, int deviceSetIndex) :
+            Message(),
+            m_preset(preset),
+            m_deviceSetIndex(deviceSetIndex)
+        { }
+    };
+
     class MsgDeleteInstance : public Message {
         MESSAGE_CLASS_DECLARATION
 
@@ -138,6 +161,7 @@ private:
     WebAPIAdapterSrv *m_apiAdapter;
 
 	void loadSettings();
+	void loadPresetSettings(const Preset* preset, int tabIndex);
 	void savePresetSettings(Preset* preset, int tabIndex);
     void setLoggingOptions();
 
diff --git a/sdrsrv/webapi/webapiadaptersrv.cpp b/sdrsrv/webapi/webapiadaptersrv.cpp
index 68fd1bd02..f1bee0a10 100644
--- a/sdrsrv/webapi/webapiadaptersrv.cpp
+++ b/sdrsrv/webapi/webapiadaptersrv.cpp
@@ -33,6 +33,7 @@
 #include "SWGPresetImport.h"
 #include "SWGPresetExport.h"
 #include "SWGPresets.h"
+#include "SWGPresetTransfer.h"
 #include "SWGSuccessResponse.h"
 #include "SWGErrorResponse.h"
 
@@ -484,6 +485,60 @@ int WebAPIAdapterSrv::instancePresetGet(
     return 200;
 }
 
+int WebAPIAdapterSrv::instancePresetPatch(
+        SWGSDRangel::SWGPresetTransfer& query,
+        SWGSDRangel::SWGPresetIdentifier& response,
+        SWGSDRangel::SWGErrorResponse& error)
+{
+    int deviceSetIndex = query.getDeviceSetIndex();
+    SWGSDRangel::SWGPresetIdentifier *presetIdentifier = query.getPreset();
+    int nbDeviceSets = m_mainCore.m_deviceSets.size();
+
+    if (deviceSetIndex >= nbDeviceSets)
+    {
+        *error.getMessage() = QString("There is no device set at index %1. Number of device sets is %2").arg(deviceSetIndex).arg(nbDeviceSets);
+        return 404;
+    }
+
+    const Preset *selectedPreset = m_mainCore.m_settings.getPreset(*presetIdentifier->getGroupName(),
+            presetIdentifier->getCenterFrequency(),
+            *presetIdentifier->getName());
+
+    if (selectedPreset == 0)
+    {
+        *error.getMessage() = QString("There is no preset [%1, %2, %3]")
+                .arg(*presetIdentifier->getGroupName())
+                .arg(presetIdentifier->getCenterFrequency())
+                .arg(*presetIdentifier->getName());
+        return 404;
+    }
+
+    DeviceSet *deviceSet = m_mainCore.m_deviceSets[deviceSetIndex];
+
+    if (deviceSet->m_deviceSourceEngine && !selectedPreset->isSourcePreset())
+    {
+        *error.getMessage() = QString("Preset type (T) and device set type (Rx) mismatch");
+        return 404;
+    }
+
+    if (deviceSet->m_deviceSinkEngine && selectedPreset->isSourcePreset())
+    {
+        *error.getMessage() = QString("Preset type (R) and device set type (Tx) mismatch");
+        return 404;
+    }
+
+    MainCore::MsgLoadPreset *msg = MainCore::MsgLoadPreset::create(selectedPreset, deviceSetIndex);
+    m_mainCore.m_inputMessageQueue.push(msg);
+
+    response.init();
+    response.setCenterFrequency(selectedPreset->getCenterFrequency());
+    *response.getGroupName() = selectedPreset->getGroup();
+    *response.getType() = selectedPreset->isSourcePreset() ? "R" : "T";
+    *response.getName() = selectedPreset->getDescription();
+
+    return 200;
+}
+
 int WebAPIAdapterSrv::instanceDeviceSetsPost(
         bool tx,
         SWGSDRangel::SWGSuccessResponse& response,
diff --git a/sdrsrv/webapi/webapiadaptersrv.h b/sdrsrv/webapi/webapiadaptersrv.h
index 1a8654fd6..fb2603235 100644
--- a/sdrsrv/webapi/webapiadaptersrv.h
+++ b/sdrsrv/webapi/webapiadaptersrv.h
@@ -93,6 +93,11 @@ public:
             SWGSDRangel::SWGPresets& response,
             SWGSDRangel::SWGErrorResponse& error);
 
+    virtual int instancePresetPatch(
+            SWGSDRangel::SWGPresetTransfer& query,
+            SWGSDRangel::SWGPresetIdentifier& response,
+            SWGSDRangel::SWGErrorResponse& error);
+
     virtual int instanceDeviceSetsPost(
             bool tx,
             SWGSDRangel::SWGSuccessResponse& response,
diff --git a/swagger/sdrangel/api/swagger/swagger.yaml b/swagger/sdrangel/api/swagger/swagger.yaml
index 6d2df9445..60a3e8fc0 100644
--- a/swagger/sdrangel/api/swagger/swagger.yaml
+++ b/swagger/sdrangel/api/swagger/swagger.yaml
@@ -337,7 +337,7 @@ paths:
         "501":
           description: Function not implemented
     put:
-      description: Update device set settings on an existing preset.
+      description: Update an existing preset with device set settings.
       operationId: instancePresetPut
       tags:
         - Instance
diff --git a/swagger/sdrangel/code/html2/index.html b/swagger/sdrangel/code/html2/index.html
index 1c6401143..b0bf4ac9c 100644
--- a/swagger/sdrangel/code/html2/index.html
+++ b/swagger/sdrangel/code/html2/index.html
@@ -14268,7 +14268,7 @@ $(document).ready(function() {
                         <div class="pull-right"></div>
                         <div class="clearfix"></div>
                         <p></p>
-                        <p class="marked">Update device set settings on an existing preset.</p>
+                        <p class="marked">Update an existing preset with device set settings.</p>
                         <p></p>
                         <br />
                         <pre class="prettyprint language-html prettyprinted" data-type="put"><code><span class="pln">/sdrangel/preset</span></code></pre>
@@ -15011,7 +15011,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2017-12-20T00:50:19.499+01:00
+              Generated 2017-12-20T14:24:11.587+01:00
             </div>
           </div>
       </div>