diff --git a/ClassDigitizer2Gen.cpp b/ClassDigitizer2Gen.cpp
index bf0d0f7..743c814 100644
--- a/ClassDigitizer2Gen.cpp
+++ b/ClassDigitizer2Gen.cpp
@@ -571,13 +571,30 @@ void Digitizer2Gen::ProgramPHA(bool testPulse){
     WriteValue("/ch/0..63/par/EventTriggerSource", "Ch64Trigger");
     WriteValue("/ch/0..63/par/WaveTriggerSource" , "Ch64Trigger"); 
 
-    WriteValue("/ch/0..63/par/ChannelsTriggerMask", "0x0000FFFF000F000F");
+    //WriteValue("/ch/0..63/par/ChannelsTriggerMask", "0x0000FFFF000F000F");
+
+    //WriteValue("/ch/0..3/par/ChannelsTriggerMask", "0x1");
+    //WriteValue("/ch/4..7/par/ChannelsTriggerMask", "0x10");
+
     //WriteValue("/ch/0/par/ChannelsTriggerMask", "0x000F");
     //WriteValue("/ch/12/par/ChannelsTriggerMask", "0x000F");
     //WriteValue("/ch/38/par/ChannelsTriggerMask", "0x000F"); // when channel has no input, it still record.
 
-    //WriteValue("/ch/0..63/par/CoincidenceMask", "Ch64Trigger");
-    //WriteValue("/ch/0..63/par/CoincidenceLength", "100"); //ns
+    //----------- coincident trigger to ch-0
+    WriteValue("/ch/0/par/ChannelsTriggerMask", "0x1");
+
+    WriteValue("/ch/0..3/par/EventTriggerSource", "ChSelfTrigger");
+    WriteValue("/ch/1..3/par/CoincidenceMask", "Ch64Trigger");
+    WriteValue("/ch/1..3/par/CoincidenceLengthT", "10"); // ns
+
+
+    //WriteValue("/ch/8..11/par/ChannelsTriggerMask", "0x100");
+
+    //WriteValue("/ch/9..11/par/EventTriggerSource", "ChSelfTrigger");
+    //WriteValue("/ch/9..11/par/CoincidenceMask", "Ch64Trigger");
+    //WriteValue("/ch/9..11/par/CoincidenceLengthT", "10"); // ns
+
+
 
     //======== ACQ trigger?
     //WriteValue("/ch/0..63/par/EventTriggerSource", "GlobalTriggerSource");
diff --git a/SOLARISDAQ.cpp b/SOLARISDAQ.cpp
index 6f9dcdd..e71dd68 100644
--- a/SOLARISDAQ.cpp
+++ b/SOLARISDAQ.cpp
@@ -124,8 +124,8 @@ static void MainWindow (GtkApplication *app){
     //g_signal_connect( bnEnd, "clicked", G_CALLBACK(OpenDigitizers), NULL);
     gtk_box_append( GTK_BOX(box3), bnEnd);
 
-    GtkWidget * cbRunNum = gtk_combo_box_new();
-    gtk_box_append( GTK_BOX(box3), cbRunNum);
+    GtkWidget * spinRunNum = gtk_spin_button_new(gtk_adjustment_new(0, 0, 1000, 1, 10, 0), 1, 0);
+    gtk_box_append( GTK_BOX(box3), spinRunNum);
 
   }