diff --git a/rtdata/languages/default b/rtdata/languages/default
index 7adf44d50..2507d2911 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -671,6 +671,10 @@ PREFERENCES_APPLNEXTSTARTUP;restart required
 PREFERENCES_AUTOMONPROFILE;Use operating system's main monitor color profile
 PREFERENCES_BATCH_PROCESSING;Batch Processing
 PREFERENCES_BEHAVIOR;Behavior
+PREFERENCES_BEHADDALL;All to 'Add'
+PREFERENCES_BEHADDALLHINT;Set all parameters to the <b>Add</b> mode.\nAdjustments of parameters in the batch tool panel will be <b>deltas</b> to the stored values 
+PREFERENCES_BEHSETALL;All to 'Set'
+PREFERENCES_BEHSETALLHINT;Set all parameters to the <b>Set</b> mode.\nAdjustments of parameters in the batch tool panel will be <b>absolute</b>, the actual values will be displayed
 PREFERENCES_BLACKBODY;Tungsten
 PREFERENCES_BLINKCLIPPED;Blink clipped areas
 PREFERENCES_CACHECLEARALL;Clear All
diff --git a/rtgui/preferences.cc b/rtgui/preferences.cc
index d7a108585..b5bfe6ea7 100644
--- a/rtgui/preferences.cc
+++ b/rtgui/preferences.cc
@@ -111,8 +111,10 @@ Gtk::Widget* Preferences::getBatchProcPanel () {
     behscrollw->set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
     behscrollw->set_border_width(8);
     behscrollw->set_size_request(-1, 60);
+    Gtk::VBox* vbbeh = Gtk::manage( new Gtk::VBox () );
+    vbbeh->pack_start (*behscrollw, Gtk::PACK_EXPAND_WIDGET);
     Gtk::Frame* behFrame = Gtk::manage (new Gtk::Frame (M("PREFERENCES_BEHAVIOR")));
-    behFrame->add (*behscrollw);
+    behFrame->add (*vbbeh);
     //mvbpp->pack_start (*behFrame);
     mvbpp->pack_start (*behFrame, Gtk::PACK_EXPAND_WIDGET, 4);
     Gtk::TreeView* behTreeView = Gtk::manage (new Gtk::TreeView ());
@@ -273,6 +275,20 @@ Gtk::Widget* Preferences::getBatchProcPanel () {
 
     behTreeView->expand_all ();
 
+    behAddAll = Gtk::manage( new Gtk::Button (M("PREFERENCES_BEHADDALL")) );
+    behSetAll = Gtk::manage( new Gtk::Button (M("PREFERENCES_BEHSETALL")) );
+    behAddAll->set_tooltip_markup (M("PREFERENCES_BEHADDALLHINT"));
+    behSetAll->set_tooltip_markup (M("PREFERENCES_BEHSETALLHINT"));
+
+    behAddAll->signal_clicked().connect( sigc::mem_fun(*this, &Preferences::behAddAllPressed) );
+    behSetAll->signal_clicked().connect( sigc::mem_fun(*this, &Preferences::behSetAllPressed) );
+
+    Gtk::HBox* buttonpanel1 = Gtk::manage (new Gtk::HBox ());
+    //buttonpanel1->set_spacing(8);
+    buttonpanel1->pack_end (*behSetAll, Gtk::PACK_SHRINK, 4);
+    buttonpanel1->pack_end (*behAddAll, Gtk::PACK_SHRINK, 4);
+    vbbeh->pack_start (*buttonpanel1, Gtk::PACK_SHRINK, 4);
+
     chOverwriteOutputFile =  Gtk::manage( new Gtk::CheckButton (M("PREFERENCES_OVERWRITEOUTPUTFILE")) );
     mvbpp->pack_start(*chOverwriteOutputFile, Gtk::PACK_SHRINK, 4);
 
@@ -1584,3 +1600,31 @@ bool Preferences::splashClosed(GdkEventAny* event) {
 	splash = NULL;
 	return true;
 }
+
+void Preferences::behAddAllPressed () {
+
+    if (moptions.baBehav.size() == ADDSET_PARAM_NUM) {
+        for (size_t i=0; i<moptions.baBehav.size(); i++)
+            for (Gtk::TreeIter sections=behModel->children().begin();  sections!=behModel->children().end(); sections++)
+                for (Gtk::TreeIter adjs=sections->children().begin();  adjs!=sections->children().end(); adjs++)
+                    if (adjs->get_value (behavColumns.addsetid) == i) {
+                        adjs->set_value (behavColumns.badd, true);
+                        adjs->set_value (behavColumns.bset, false);
+                        break;
+                    }
+    }
+}
+
+void Preferences::behSetAllPressed () {
+
+    if (moptions.baBehav.size() == ADDSET_PARAM_NUM) {
+        for (size_t i=0; i<moptions.baBehav.size(); i++)
+            for (Gtk::TreeIter sections=behModel->children().begin();  sections!=behModel->children().end(); sections++)
+                for (Gtk::TreeIter adjs=sections->children().begin();  adjs!=sections->children().end(); adjs++)
+                    if (adjs->get_value (behavColumns.addsetid) == i) {
+                        adjs->set_value (behavColumns.badd, false);
+                        adjs->set_value (behavColumns.bset, true);
+                        break;
+                    }
+    }
+}
diff --git a/rtgui/preferences.h b/rtgui/preferences.h
index 1a4c383cb..b363d2056 100644
--- a/rtgui/preferences.h
+++ b/rtgui/preferences.h
@@ -119,6 +119,8 @@ class Preferences : public Gtk::Dialog {
     Gtk::CheckButton* ckbmenuGroupProfileOperations;
     Gtk::CheckButton* ckbmenuGroupExtProg;
 
+    Gtk::Button*      behAddAll;
+    Gtk::Button*      behSetAll;
     Gtk::CheckButton* chOverwriteOutputFile;
 
     Gtk::CheckButton* saveParamsFile;
@@ -202,6 +204,9 @@ class Preferences : public Gtk::Dialog {
 
     void behAddRadioToggled (const Glib::ustring& path);
     void behSetRadioToggled (const Glib::ustring& path);
+    void behAddAllPressed ();
+    void behSetAllPressed ();
+
 //    void selectICCProfileDir ();
 //    void selectMonitorProfile ();
 };