diff --git a/webapp/components/general/NetPyNECoordsRange.js b/webapp/components/general/NetPyNECoordsRange.js
index 51ba51e3..bd0bad21 100644
--- a/webapp/components/general/NetPyNECoordsRange.js
+++ b/webapp/components/general/NetPyNECoordsRange.js
@@ -96,11 +96,32 @@ export default class NetPyNECoordsRange extends Component {
   handleCoordParamChange(index, newValue) {
     const {
       model,
+      conds,
       name,
     } = this.props;
+
+    function getOppositeObject(list, givenValue) {
+      const index = list.findIndex(obj => obj.value === givenValue);
+
+      if (index === -1 || list.length !== 2) {
+          return null;
+      }
+      return list[1 - index];
+    }
+
+    const opossiteRangeType = getOppositeObject(this.props.items, this.state.rangeType) ;
+
+    if (opossiteRangeType)
+    {
+      const pythonMessageDelOpposite = `netpyne_geppetto.${model}['${name}']['${conds}'].pop('${opossiteRangeType.value}', None)`;
+      Utils.execPythonMessage(
+        pythonMessageDelOpposite
+      );
+    }
+
     const rangeValue = this.state.rangeValue ;
     rangeValue[index] = newValue ;
-    const pythonMessage = `netpyne_geppetto.${model}['${name}']['${this.state.rangeType}'] = [${rangeValue}]` ;
+    const pythonMessage = `netpyne_geppetto.${model}['${name}']['${conds}']['${this.state.rangeType}'] = [${rangeValue}]` ;
     Utils.execPythonMessage(
       pythonMessage
     );