Index: trunk/BNS/bnssettings.cpp
===================================================================
--- trunk/BNS/bnssettings.cpp	(revision 2101)
+++ trunk/BNS/bnssettings.cpp	(revision 2102)
@@ -43,5 +43,5 @@
     setValue("password1",   "");
     setValue("refSys_1",    "IGS05");
-    setValue("beClocks1",   "0");
+    setValue("CoM_1",      "0");
     setValue("outFile_1",   "");
 
@@ -51,5 +51,5 @@
     setValue("password2",   "");
     setValue("refSys_2",    "IGS05");
-    setValue("beClocks2",   "0");
+    setValue("CoM_2",      "0");
     setValue("outFile_2",   "");
 
@@ -59,5 +59,5 @@
     setValue("password3",   "");
     setValue("refSys_3",    "IGS05");
-    setValue("beClocks3",   "0");
+    setValue("CoM_3",       "0");
     setValue("outFile_3",   "");
 
Index: trunk/BNS/bnswindow.cpp
===================================================================
--- trunk/BNS/bnswindow.cpp	(revision 2101)
+++ trunk/BNS/bnswindow.cpp	(revision 2102)
@@ -316,4 +316,8 @@
   _sp3SamplSpinBox->setWhatsThis(tr("Select the SP3 orbit file sampling interval in seconds. A value of zero '0' tells BNS to store all available samples into SP3 orbit files."));
   _autoStartCheckBox->setWhatsThis(tr("<p>Tick 'Auto start' for auto-start of BNS at startup time in window mode with preassigned processing options.</p>"));
+  _CoM_1_CheckBox->setWhatsThis(tr("<p>By default orbit and clock corrections refer to APC. Tick 'Center of Mass' to refer uploaded corrections to CoM.</p>"));
+  _CoM_2_CheckBox->setWhatsThis(tr("<p>By default orbit and clock corrections refer to APC. Tick 'Center of Mass' to refer uploaded corrections to CoM.</p>"));
+  _CoM_3_CheckBox->setWhatsThis(tr("<p>By default orbit and clock corrections refer to APC. Tick 'Center of Mass' to refer uploaded corrections to CoM.</p>"));
+
 
   // TabWidget