diff --git a/pygaze/_eyetracker/opengaze.py b/pygaze/_eyetracker/opengaze.py
index 07420bf..9f58966 100644
--- a/pygaze/_eyetracker/opengaze.py
+++ b/pygaze/_eyetracker/opengaze.py
@@ -101,7 +101,8 @@ def __init__(self, ip='127.0.0.1', port=4242, logfile='default.tsv', \
             'LEYEX', 'LEYEY', 'LEYEZ', 'LPUPILD', 'LPUPILV', \
             'REYEX', 'REYEY', 'REYEZ', 'RPUPILD', 'RPUPILV', \
             'CX', 'CY', 'CS', \
-            'USER']
+            'LPMM','LPMMV','RPMM','RPMMV','BKID','BKDUR','BKPMIN','USER']
+            
         self._n_logvars = len(self._logheader)
         self._logfile.write('\t'.join(self._logheader) + '\n')
         # The log is consolidated (written to the disk) every N samples.
@@ -192,6 +193,8 @@ def __init__(self, ip='127.0.0.1', port=4242, logfile='default.tsv', \
         self.enable_send_time(True)
         self.enable_send_time_tick(True)
         self.enable_send_user_data(True)
+        self.enable_send_blink(True)
+        self.enable_send_pupilmm(True)
 
     
     def calibrate(self):
@@ -838,6 +841,46 @@ def enable_send_user_data(self, state):
         
         # Return a success Boolean.
         return acknowledged and (timeout==False)
+
+    def enable_send_pupilmm(self, state):
+        
+        """Enable (state=True) or disable (state=False) the inclusion of
+        the left and right eye pupil diameter in millimeters in the data 
+        record string. This data consists of the following:
+        LPMM:  The diameter of the left eye pupil in millimeters
+        LPMMV: The valid flag with value of 1 if the data is valid, and 0 if it is not.
+        RPMM:  The diameter of the right eye pupil in millimeters
+        RPMMV: The valid flag with value of 1 if the data is valid, and 0 if it is not.
+        """
+
+        # Send the message (returns after the Server acknowledges receipt).
+        acknowledged, timeout = self._send_message('SET', \
+            'ENABLE_SEND_PUPILMM', \
+            values=[('STATE', int(state))], \
+            wait_for_acknowledgement=True)
+        
+        # Return a success Boolean.
+        return acknowledged and (timeout==False)
+
+    def enable_send_blink(self, state):
+        
+        """Enable (state=True) or disable (state=False) the inclusion of
+        the rolling user blink rate (blinks / minute), blink duration and blink ID. 
+        This data consists of the following:
+        BKID:   Each blink is assigned an ID value and incremented by one. The BKID value
+                equals 0 for every record where no blink has been detected.
+        BKDUR:  The duration of the preceding blink in seconds.
+        BKPMIN: The number of blinks in the previous 60 second period of time.
+        """
+
+        # Send the message (returns after the Server acknowledges receipt).
+        acknowledged, timeout = self._send_message('SET', \
+            'ENABLE_SEND_BLINK', \
+            values=[('STATE', int(state))], \
+            wait_for_acknowledgement=True)
+        
+        # Return a success Boolean.
+        return acknowledged and (timeout==False)
     
     def calibrate_start(self, state):