diff --git a/site_ansto/instrument/bilby/config/motors/sct_tank.tcl b/site_ansto/instrument/bilby/config/motors/sct_tank.tcl
index b5913fff..bc7cd3ea 100644
--- a/site_ansto/instrument/bilby/config/motors/sct_tank.tcl
+++ b/site_ansto/instrument/bilby/config/motors/sct_tank.tcl
@@ -300,6 +300,8 @@ proc ::scobj::tank::mkDriver { sct_controller name } {
     hsetprop ${scobj_hpath} debug_threshold 5
 # mkDriver hook code starts
    ::utility::mkVar vessel_y float user vessel_y true instrument true true
+   sicslist setatt vessel_y klass instrument
+   sicslist setatt vessel_y mutable true
 # mkDriver hook code ends
   } catch_message ]
   handle_exception ${catch_status} ${catch_message}
diff --git a/site_ansto/instrument/config/environment/huber_pilot.sct b/site_ansto/instrument/config/environment/huber_pilot.sct
index 5debf8e8..56853887 100644
--- a/site_ansto/instrument/config/environment/huber_pilot.sct
+++ b/site_ansto/instrument/config/environment/huber_pilot.sct
@@ -9,19 +9,19 @@ driver huber_pilot = {
 
   group Loop1 = {
     priv = user;
+    type = float;
     readable = 1;
+    mutable = true;
     var sensor = {
-      type = float;
       read_command = '01';
       permlink = 'T.S01';
     }
     var setpoint = {
-      type = float;
       read_command = '00';
       writeable = 1;
       write_command = '00';
-      driveable = Loop1/sensor
-      lowerlimit = -25.0; upperlimit = 30.0;
+      driveable = Loop1/sensor;
+      lowerlimit = 5.0; upperlimit = 30.0;
       tolerance = 0.5; property settle_time = 10;
       permlink = 'T.SP01';
     }
diff --git a/site_ansto/instrument/config/environment/omron_hldc.sct b/site_ansto/instrument/config/environment/omron_hldc.sct
index 03cc5fc1..8d6fea5e 100644
--- a/site_ansto/instrument/config/environment/omron_hldc.sct
+++ b/site_ansto/instrument/config/environment/omron_hldc.sct
@@ -18,6 +18,7 @@ driver omron_hldc = {
     var distance = {
       readable = 1;
       type = float;
+      mutable = true;
       read_function = read_mm;
       read_command = '0201C02030008001';
     }
diff --git a/site_ansto/instrument/config/environment/sct_huber_pilot.tcl b/site_ansto/instrument/config/environment/sct_huber_pilot.tcl
index 925f5ff4..0442a495 100644
--- a/site_ansto/instrument/config/environment/sct_huber_pilot.tcl
+++ b/site_ansto/instrument/config/environment/sct_huber_pilot.tcl
@@ -265,7 +265,7 @@ proc ::scobj::huber_pilot::mkDriver { sct_controller name } {
     hsetprop ${scobj_hpath}/Loop1/sensor rdValue ${ns}::rdValue ${scobj_hpath}
     hsetprop ${scobj_hpath}/Loop1/sensor control true
     hsetprop ${scobj_hpath}/Loop1/sensor data true
-    hsetprop ${scobj_hpath}/Loop1/sensor mutable false
+    hsetprop ${scobj_hpath}/Loop1/sensor mutable true
     hsetprop ${scobj_hpath}/Loop1/sensor nxsave true
     hsetprop ${scobj_hpath}/Loop1/sensor permlink data_set "T${permlink_device_number}S01"
     hsetprop ${scobj_hpath}/Loop1/sensor @description "T${permlink_device_number}S01"
@@ -287,9 +287,9 @@ proc ::scobj::huber_pilot::mkDriver { sct_controller name } {
     hsetprop ${scobj_hpath}/Loop1/setpoint driveable Loop1/sensor
     hsetprop ${scobj_hpath}/Loop1/setpoint control true
     hsetprop ${scobj_hpath}/Loop1/setpoint data true
-    hsetprop ${scobj_hpath}/Loop1/setpoint mutable false
+    hsetprop ${scobj_hpath}/Loop1/setpoint mutable true
     hsetprop ${scobj_hpath}/Loop1/setpoint nxsave true
-    hsetprop ${scobj_hpath}/Loop1/setpoint lowerlimit -25.0
+    hsetprop ${scobj_hpath}/Loop1/setpoint lowerlimit 5.0
     hsetprop ${scobj_hpath}/Loop1/setpoint upperlimit 30.0
     hsetprop ${scobj_hpath}/Loop1/setpoint tolerance 0.5
     hsetprop ${scobj_hpath}/Loop1/setpoint permlink data_set "T${permlink_device_number}SP01"
diff --git a/site_ansto/instrument/config/environment/sct_omron_hldc.tcl b/site_ansto/instrument/config/environment/sct_omron_hldc.tcl
index 694d989b..92ad56d3 100644
--- a/site_ansto/instrument/config/environment/sct_omron_hldc.tcl
+++ b/site_ansto/instrument/config/environment/sct_omron_hldc.tcl
@@ -207,7 +207,7 @@ proc ::scobj::omron_hldc::mkDriver { sct_controller name } {
     hsetprop ${scobj_hpath}/distance read_mm ${ns}::read_mm ${scobj_hpath}
     hsetprop ${scobj_hpath}/distance control true
     hsetprop ${scobj_hpath}/distance data true
-    hsetprop ${scobj_hpath}/distance mutable false
+    hsetprop ${scobj_hpath}/distance mutable true
     hsetprop ${scobj_hpath}/distance nxsave true
     hsetprop ${scobj_hpath}/distance oldval 0.0
     hsetprop ${scobj_hpath}/distance sdsinfo "::nexus::scobj::sdsinfo"