diff --git a/src/js/app.js b/src/js/app.js
index 3946717..c2ed0aa 100644
--- a/src/js/app.js
+++ b/src/js/app.js
@@ -2,8 +2,8 @@ angular.module('focaBotoneraFacturador', [])
     .component('focaBotoneraFacturador', {
         templateUrl: 'src/views/botonera-facturador.html',
         controller: 'focaBotoneraFacturadorController',
-        bindings: { 
-            botones: '<',
-            max: '<'
+        bindings: {
+            max: '<',
+            botones: '<'
         }
     });
diff --git a/src/js/controller.js b/src/js/controller.js
index fc056dd..a0b8da9 100644
--- a/src/js/controller.js
+++ b/src/js/controller.js
@@ -5,21 +5,13 @@ angular.module('focaBotoneraFacturador')
         'APP',
         function($scope, $window, APP) {
             this.$onInit = function() {
-                $scope.botones = $scope.$ctrl.botones;
-                //TODO: controlar que no se estiren los botones
-                if(APP) return;
-                var max = ($scope.$ctrl.max) ? $scope.$ctrl.max : 12;
-                if($window.innerWidth > 576) {
-                    while(($scope.botones.length % max) !== 0) {
-                        $scope.botones.push('');
-                    }
-                }else {
-                    while(($scope.botones.length % 4) !== 0) {
-                        $scope.botones.push('');
-                    }
-                }
+                ordenarBotones();
             };
 
+            this.$onChanges = function(p) {
+                ordenarBotones();
+            }
+
             function nombreFuncion(string) {
                 var texto = 'seleccionar';
                 var arr = string.split(' ');
@@ -33,4 +25,29 @@ angular.module('focaBotoneraFacturador')
             $scope.ejecutarFuncion = function(nombre) {
                 $scope.$parent[nombreFuncion(nombre)]();
             };
+
+            $scope.ejecutarFuncionDelete = function(variable) {
+                $scope.$parent['clean' + variable]();
+            };
+
+            $scope.existeFuncionDelete = function(variable) {
+                if ($scope.$parent['clean' + variable]) return true;
+                return false;
+            }
+
+            function ordenarBotones() {
+                $scope.botones = $scope.$ctrl.botones;
+                //TODO: controlar que no se estiren los botones
+                if(APP) return;
+                var max = ($scope.$ctrl.max) ? $scope.$ctrl.max : 12;
+                if ($window.innerWidth > 576) {
+                    while(($scope.botones.length % max) !== 0) {
+                        $scope.botones.push('');
+                    }
+                } else {
+                    while(($scope.botones.length % 4) !== 0) {
+                        $scope.botones.push('');
+                    }
+                }
+            }
     }]);
diff --git a/src/views/botonera-facturador.html b/src/views/botonera-facturador.html
index e9ba2e2..c27fa86 100644
--- a/src/views/botonera-facturador.html
+++ b/src/views/botonera-facturador.html
@@ -2,6 +2,19 @@
     class="col-4 col-sm-2 px-1 py-1 m-auto m-md-0"
     ng-repeat="boton in botones track by $index"
     ng-class="{'d-md-grid': boton == ''}">
+    <img
+        ng-src="./img/tilde_.png"
+        class="w-25 position-absolute  foca-boton-facturador-right"
+        ng-show="boton != '' && boton.checked"
+        uib-tooltip="Parámetro seleccionado"
+        tooltip-append-to-body="true">
+    <img
+        uib-tooltip="Limpiar parámetro"
+        tooltip-append-to-body="true"
+        ng-src="./img/cruz-gris.png"
+        class="w-25 position-absolute"
+        ng-show="boton != '' && boton.checked && existeFuncionDelete(boton.variable)"
+        ng-click="ejecutarFuncionDelete(boton.variable)">
     <button
         type="button"
         class="btn btn-default btn-block btn-xs text-center py-1 rounded border border-light foca-overflow-hidden"
@@ -9,7 +22,7 @@
         ng-class="{'d-sm-block h-100': boton == ''}"
         ng-disabled="boton.disable"
     >
-        <img ng-src="./img/{{boton.image}}" alt="">
+        <img ng-src="./img/{{boton.image}}" alt="" ng-show="boton != ''">
         <span>{{boton.label}}</span>
     </button>
 </div>