diff --git a/interface/__init__.py b/interface/__init__.py
index 8f3efde..397be37 100644
--- a/interface/__init__.py
+++ b/interface/__init__.py
@@ -1,6 +1,11 @@
 from .snap import getSnap
 from .snap import saveSnap
+from .snap import loadSnap
+from .snap import parseSnapShotReqYAML
 from .save import saveDataset
+from .save import getDatasetFileName
 from .load import loadDataset
 from .elog import writeElog
 from .slic import SlicScan
+from .doocs import doocsread
+from .doocs import doocswrite
diff --git a/interface/snap.py b/interface/snap.py
index 714504b..5cc0063 100644
--- a/interface/snap.py
+++ b/interface/snap.py
@@ -57,15 +57,14 @@ def getSnap(pvs=None):
     ret={}
     val = epics.caget_many(pvs)
     for i,pv in enumerate(pvs):
-        if val[i]:      # filter out None values
+        if not val[i] is None:      # filter out None values
             ret[pv]=float(val[i]) 
-#    epics.ca.clear_cache()
     return ret
 
-def saveSnap(pvs={},label="", comment = "generated by application"):
+def saveSnap(pvs={},label="", comment = "generated by application",reqfile = "SF_settings.yaml"):
     filename = datetime.datetime.now().strftime('/sf/data/applications/snapshot/SF_settings_%Y%m%d_%H%M%S.snap')
     with open(filename,'w') as fid:
-        fid.write('#{"labels":["%s"],"comment":"%s", "machine_parms":{}, "save_time": 0.0, "req_file_name": "SF_settings.yaml"}\n'  % (label,comment))
+        fid.write('#{"labels":["%s"],"comment":"%s", "machine_parms":{}, "save_time": 0.0, "req_file_name": "%s"}\n'  % (label,comment,reqfile))
         for key in pvs.keys():
             if isinstance(pvs[key],int):
                 fid.write('%s,{"val": %d}\n' % (key,pvs[key]))
@@ -73,6 +72,21 @@ def saveSnap(pvs={},label="", comment = "generated by application"):
                 fid.write('%s,{"val": %f}\n' % (key,pvs[key]))
             elif isinstance(pvs[key],str):
                 fid.write('%s,{"val": %s}\n' % (key,pvs[key]))
+    return filename
+
+def loadSnap(filename):
+    res={}
+    with open(filename,'r') as fid:
+        lines=fid.readlines()
+        for line in lines[1:]:
+            split = line.split(',')
+            pv = split[0].strip()
+            val = split[1].split('"val":')[1].split('}')[0]
+            if '.' in val:
+                res[pv]=float(val)
+            else:
+                res[pv]= val 
+    return res
                 
 
 
diff --git a/util/__init__.py b/util/__init__.py
index 7d06df8..9c8a749 100644
--- a/util/__init__.py
+++ b/util/__init__.py
@@ -1,4 +1,5 @@
 from .zmqbase import ZMQBase
 from .serverbase import ServerBase
+from .simplecapture import SimpleCapture
 
 
diff --git a/util/zmqbase.py b/util/zmqbase.py
index 1e883d3..08a2b91 100644
--- a/util/zmqbase.py
+++ b/util/zmqbase.py
@@ -36,6 +36,9 @@ class ZMQBase:
                     self.logger.info("Watchdog server came online")
                 self.serverIsOffline=False
                 if check:
+                    if reply['action'] == 'quit':
+                        client.close()
+                        context.term()
                     return (reply['action'] == 'quit')
                 else:
                     self.logger.warning("Malformed reply from server")
@@ -49,6 +52,7 @@ class ZMQBase:
                 if not self.serverIsOffline:
                     self.logger.info("Watchdog server seems to be offline")
                     self.serverIsOffline=True
+                context.term()
                 return False
 
             # Create new connection