Index: sources/gui/qml/components/RangeRect.qml
===================================================================
diff -u -r56e378f7504701b9e9a9dccaf205aef2fd52c58e -r9d8a60eb984003d3f7814cbe507b1b37f519bc80
--- sources/gui/qml/components/RangeRect.qml	(.../RangeRect.qml)	(revision 56e378f7504701b9e9a9dccaf205aef2fd52c58e)
+++ sources/gui/qml/components/RangeRect.qml	(.../RangeRect.qml)	(revision 9d8a60eb984003d3f7814cbe507b1b37f519bc80)
@@ -6,8 +6,8 @@
  * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
  *
  * \file RangeRect.qml
- * \author (last) Behrouz NemaiPour
- * \date (last) 04-Jun-2020
+ * \author (last) Peter Lucia
+ * \date (last) 06-Oct-2020
  * \author (original) Behrouz NematiPour
  * \date (original) 24-Jan-2020
  *
@@ -26,15 +26,19 @@
 Rectangle { id: _root
     signal clicked(var vMouseEvent)
     signal dragged(var vMouseEvent)
+    signal pressChanged()
 
 
     property int    decimal : 0
-    property real   minimum : 0
-    property real   maximum : 0
+    property real   minimum : 0 ///< minimum value of the range
+    property real   maximum : 0 ///< maximum value of the range
 
     property alias  minText : _textMinimum
     property alias  maxText : _textMaximum
 
+    property bool   minTextHorizontalCenter: false
+    property bool   maxTextHorizontalCenter: false
+
     property string unit    : ""
 
     property real   touchMargin: 0
@@ -58,6 +62,7 @@
             left        : parent.left
             top         : parent.bottom
             topMargin   : Variables.rangeRectTextMargin
+            leftMargin  : minTextHorizontalCenter ? -minText.width / 2 : 0
         }
     }
 
@@ -74,6 +79,7 @@
             right       : parent.right
             top         : parent.bottom
             topMargin   : Variables.rangeRectTextMargin
+            rightMargin : maxTextHorizontalCenter ? -maxText.width / 2 : 0
         }
     }
 
@@ -88,5 +94,8 @@
         onClicked: {
             _root.clicked(mouse)
         }
+        onPressedChanged: {
+            _root.pressChanged();
+        }
     }
 }