diff --git a/site_ansto/instrument/util/gen_sct.py b/site_ansto/instrument/util/gen_sct.py
index 61cda0ab..e9756c4c 100755
--- a/site_ansto/instrument/util/gen_sct.py
+++ b/site_ansto/instrument/util/gen_sct.py
@@ -573,6 +573,8 @@ def build_variable(MyDriver, p):
           MyVar['Property'][key2] = ContextStack[ContextIndex][key][key2]
     elif not key in MyVar:
       MyVar[key] = ContextStack[ContextIndex][key]
+  if 'sdsinfo' not in MyVar['Property']:
+    MyVar['Property']['sdsinfo'] = '::nexus::scobj::sdsinfo'
   # set the type if not explicitly set
   if 'type' not in MyVar['Property']:
     if 'driveable' in MyVar and MyVar['driveable']:
@@ -774,6 +776,8 @@ def put_write_function(MyDriver, func):
     txt += ['      debug_log 1 "[sct] error: [sct geterror]"']
     txt += ['      error "[sct geterror]"']
     txt += ['    }']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    if { [hpropexists [sct] driving] } {']
   txt += ['      if { [hpropexists [sct] writestatus] && [sct writestatus] == "start" } {']
   txt += ['        sct driving 1']
@@ -799,6 +803,8 @@ def put_check_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    return "idle"']
   txt += ['  } catch_message ]']
   txt += ['  handle_exception ${catch_status} ${catch_message}']
@@ -823,6 +829,8 @@ def put_fetch_function(MyDriver, func):
     txt += ['      debug_log 1 "[sct] error: [sct geterror]"']
     txt += ['      error "[sct geterror]"']
     txt += ['    }']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    debug_log 1 "%s sct send ${cmd}"' % func]
   txt += ['    sct send "${cmd}"']
   txt += ['    return ${nextState}']
@@ -855,6 +863,8 @@ def put_read_function(MyDriver, func):
     txt += ['      debug_log 1 "[sct] error: [sct geterror]"']
     txt += ['      error "[sct geterror]"']
     txt += ['    }']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    if { ${data} != [sct oldval] } {']
   txt += ['      debug_log 1 "[sct] changed to new:${data}, from old:[sct oldval]"']
   txt += ['      sct oldval ${data}']
@@ -890,6 +900,8 @@ def put_checkrange_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    if { ${setpoint} < ${lolimit} || ${setpoint} > ${hilimit} } {']
   txt += ['      error "setpoint ${setpoint} violates limits (${lolimit}..${hilimit}) on [sct]"']
   txt += ['    }']
@@ -922,6 +934,8 @@ def put_checklimits_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    if { ${setpoint} < ${lolimit} || ${setpoint} > ${hilimit} } {']
   txt += ['      sct driving 0']
   txt += ['      error "setpoint ${setpoint} violates limits (${lolimit}..${hilimit}) on [sct]"']
@@ -941,6 +955,8 @@ def put_checkstatus_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    if {[sct driving]} {']
   txt += ['      set sp "[sct target]"']
   txt += ['      set pv "[hval ${tc_root}/[sct driveable]]"']
@@ -968,6 +984,8 @@ def put_halt_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    sct driving 0']
   txt += ['    return "idle"']
   txt += ['  } catch_message ]']
@@ -998,6 +1016,8 @@ def put_pid_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+  else:
+    txt += ['# hook code goes here']
   txt += ['    sct pid_output ${pid}']
   txt += ['  } catch_message ]']
   txt += ['  handle_exception ${catch_status} ${catch_message}']
@@ -1103,9 +1123,17 @@ def put_group(MyDriver, MyGroup):
         txt += ['    hsetprop ${scobj_hpath}/%s oldval 0.0' % nodename]
       else:
         txt += ['    hsetprop ${scobj_hpath}/%s oldval UNKNOWN' % nodename]
-    if 'Property' in MyVar:
-      for key in sorted(MyVar['Property']):
-        txt += ['    hsetprop ${scobj_hpath}/%s %s "%s"' % (nodename, key, MyVar['Property'][key])]
+    for key in sorted(MyVar['Property']):
+      txt += ['    hsetprop ${scobj_hpath}/%s %s "%s"' % (nodename, key, MyVar['Property'][key])]
+    if 'nxalias' not in MyVar['Property']:
+      # TODO: generated at runtime <dev>_<group...>_<name>
+      path = MyVar['path']
+      if len(path) > 0:
+        path = path.replace('/', '_') + '_'
+      path += MyVar['name']
+      print "Path: %s" % MyVar['path']
+      nxalias = '${name}_' + path
+      txt += ['    hsetprop ${scobj_hpath}/%s nxalias "%s"' % (nodename, nxalias)]
   if not MyGroup['name']:
     if 'GroupProperty' in MyGroup:
       txt += ['']
@@ -1161,6 +1189,8 @@ def put_mk_sct_driver(MyDriver):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs']['mkDriver']['text']
     txt += ['# hook code ends']
+  else:
+    txt += ['# hook code goes here']
   txt += ['  } catch_message ]']
   txt += ['  handle_exception ${catch_status} ${catch_message}']
   txt += ['}']