diff --git a/button-group.js b/button-group.js
index d764dfa..e354d43 100644
--- a/button-group.js
+++ b/button-group.js
@@ -15,7 +15,7 @@ module.exports = function (RED) {
             var heightPx = config.buttonheight * sizes.sy - sizes.gy;
 
             var html = `<div style="width=100%; height=100%">
-                    <md-button id="{{$index}}" style="width:${widthPx}px; height:${heightPx}px; margin: ${sizes.gx}px ${sizes.gy}px; background-color: {{button.color}}; white-space: pre-wrap; word-break: break-word;" ng-click="buttonClick($event)" ng-repeat="button in msg.buttons">{{button.label}}</md-button>
+                    <md-button id="{{$index}}" style="width:${widthPx}px; height:${heightPx}px; margin: ${sizes.gx}px ${sizes.gy}px; background-color: {{button.color}}; white-space: pre-wrap; word-break: break-word;" ng-click="buttonClick($event)" ng-mousedown="buttonDown($event)" ng-mouseup="buttonUp($event)" ng-repeat="button in msg.buttons">{{button.label}}</md-button>
                 </div>`;
 
             var done = ui.addWidget({
@@ -45,8 +45,22 @@ module.exports = function (RED) {
                     $scope.buttonClick = function (e) {
                         e.preventDefault();
                         var buttonId = e.target.id;
-                        if ($scope.msg.buttons[buttonId].payload) {
-                            $scope.send({ "payload": $scope.msg.buttons[buttonId].payload });
+                        if ($scope.msg.buttons[buttonId].click) {
+                            $scope.send($scope.msg.buttons[buttonId].click);
+                        }
+                    };
+                    $scope.buttonDown = function (e) {
+                        e.preventDefault();
+                        var buttonId = e.target.id;
+                        if ($scope.msg.buttons[buttonId].down) {
+                            $scope.send($scope.msg.buttons[buttonId].down);
+                        }
+                    };
+                    $scope.buttonUp = function (e) {
+                        e.preventDefault();
+                        var buttonId = e.target.id;
+                        if ($scope.msg.buttons[buttonId].up) {
+                            $scope.send($scope.msg.buttons[buttonId].up);
                         }
                     };
                 }