Index: simulator/plugins/treatmentranges/loader.py
===================================================================
diff -u -rf921975179b1c1ad61d841b9db5976c00432fdcc -r310f51a5ed4921f184572f90d07b350ec41c0bae
--- simulator/plugins/treatmentranges/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
+++ simulator/plugins/treatmentranges/loader.py	(.../loader.py)	(revision 310f51a5ed4921f184572f90d07b350ec41c0bae)
@@ -6,7 +6,6 @@
 from PySide2 import QtWidgets
 from PySide2.QtCore import QTimer
 from PySide2.QtCore import Slot
-from dialin.squish import denaliMessages
 
 
 class Loader(DynamicLoader):
@@ -63,7 +62,7 @@
         sends the duration message
         :return: none
         """
-        denaliMessages.setTreatmentTime(self.spnDurationMax.value() * 60, value)
+        self.hd_simulator.cmd_set_treatment_time(self.spnDurationMax.value() * 60, value)
 
     @Slot()
     def do_ranges_data(self):
@@ -77,7 +76,7 @@
             self.sldDurationValue.setMinimum(duration_min * 60)
             self.sldDurationValue.setMaximum(duration_max * 60)
 
-            denaliMessages.setTreatmentParamRanges(
+            self.hd_simulator.cmd_set_treatment_parameter_ranges(
                 duration_min,
                 duration_max,
                 self.spnUFVolumeMin.value(),