--- a
+++ b/Tools/ModelUtilities/Reactions/SupportMuscleRot.any
@@ -0,0 +1,54 @@
+#ifndef EXCLUDE_MUSCLE_METABOLISM
+#define EXCLUDE_MUSCLE_METABOLISM AnyMetabModelSimple ZeroMetabolicMdl = {EtaCon = 2e22; EtaEcc = 2e22;}; MetabModel = &ZeroMetabolicMdl;
+#endif
+
+#ifndef SET_DEFAULT_ACTUATOR_VOLUME
+#define SET_DEFAULT_ACTUATOR_VOLUME Volume = 1e-6
+#endif
+
+  AnyKinRotational Rot={
+     AnyRefFrame &ref1=..StartNode;
+     AnyRefFrame &ref2=..EndNode;
+     Type=RotAxesAngles;
+   };
+
+  AnyKinMeasureOrg RotMeasureOrg={
+    AnyKinMeasure &ref=.Rot;
+    MeasureOrganizer=.Axis;
+  };
+
+
+  
+  AnyRecruitedActuator ArtificialSupportMuscle={
+    Strength = .Strength;
+    AnyKinMeasure& ref2=.RotMeasureOrg;
+    Type = iffun(eqfun(.DirectionOfForce,1), NonNegative, NonPositive);
+    SET_DEFAULT_ACTUATOR_VOLUME;
+     
+  };
+
+  AnyDrawVector DrawVector = {
+    AnyRefFrame &ref = .Rot.ref2;
+    Vec = ..DrawRef.DrawSettingsSupport.Rot.ScaleFactor*.Direction*.ArtificialSupportMuscle.Fout[0]*.Rot.ref1.Axes';
+  
+   PointAway = Off;
+  DrawCoord = Off;
+  
+  Line.RGB = ..DrawRef.DrawSettingsSupport.Rot.RGB;
+  Line.Thickness = ..DrawRef.DrawSettingsSupport.Rot.Thickness;
+  Line.End.Thickness = 2*..DrawRef.DrawSettingsSupport.Rot.Thickness;  
+  Line.End.Length = 4*..DrawRef.DrawSettingsSupport.Rot.Thickness;
+  };
+  
+  //Make another arrow to symbolize the moment vector
+  AnyDrawVector DrawVector2 = {
+    AnyRefFrame &ref = .Rot.ref2;
+    Vec = ..DrawRef.DrawSettingsSupport.Rot.ScaleFactor*(.Direction+2*..DrawRef.DrawSettingsSupport.Rot.HeadLength*.Direction)*.ArtificialSupportMuscle.Fout[0]*.Rot.ref1.Axes';
+   PointAway = Off;
+  DrawCoord = Off;
+  
+  Line.RGB = ..DrawRef.DrawSettingsSupport.Rot.RGB;
+  Line.Thickness = ..DrawRef.DrawSettingsSupport.Rot.Thickness;
+  Line.End.Thickness = 2*..DrawRef.DrawSettingsSupport.Rot.Thickness;  
+  Line.End.Length = 4*..DrawRef.DrawSettingsSupport.Rot.Thickness;
+};
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