added setPoint to Dataset

release-packaging/Classes/FluidDataSet.sc

@@ -40,7 +40,17 @@ FluidDataSet : FluidDataObject
       this.prSendMsg(this.deletePointMsg(label));
     }
 
-    clearMsg { ^this.prMakeMsg(\clear,id); }
+    setPointMsg{|label,buffer|
+        buffer = this.prEncodeBuffer(buffer);
+        ^this.prMakeMsg(\setPoint,id,label.asSymbol,buffer);
+    }
+
+	setPoint{|label, buffer, action|
+      actions[\setPoint] = [nil,action];
+	  this.prSendMsg(this.setPointMsg(label,buffer));
+	}
+
+	clearMsg { ^this.prMakeMsg(\clear,id); }
 
     clear { |action|
       actions[\clear] = [nil,action];

release-packaging/HelpSource/Classes/FluidDataSet.schelp

@@ -41,6 +41,9 @@ Retrieve a point from the data set into a link::Classes/Buffer::. Will report an
 
 METHOD:: deletePoint
 Remove a point from the data set. Will report an error if the label doesn't exist.
+
+METHOD:: setPoint
+Set the point: if the label exists, this method behaves like updatePoint; if the label doesn't exist, behaves like addPoint.
 ​​
 METHOD:: clear
 Empty the data set.