diff --git a/app/includes/header-node-modal.tpl b/app/includes/header-node-modal.tpl
index 8f46ccd638..a5e9d84bc8 100644
--- a/app/includes/header-node-modal.tpl
+++ b/app/includes/header-node-modal.tpl
@@ -48,11 +48,11 @@
           </div>
 
           <div class="clearfix col-xs-12 radio">
-            <label><input name="options" type="radio" ng-model="customNode.options" value="eth"> ETH </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="etc"> ETC </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="rop"> Ropsten </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="kov"> Kovan </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="rin"> Rinkeby </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.eth_ethscan" ng-model="customNode.options" value="eth"> ETH </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.etc_epool" ng-model="customNode.options" value="etc"> ETC </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.rop_mew" ng-model="customNode.options" value="rop"> Ropsten </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.kov_ethscan" ng-model="customNode.options" value="kov"> Kovan </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.rin_ethscan" ng-model="customNode.options" value="rin"> Rinkeby </label>
             <label><input name="options" type="radio" ng-model="customNode.options" value="cus"> Custom </label>
             <label ng-show="customNode.options == 'cus'"><input type="checkbox" ng-model="customNode.eip155" value="true"> Supports EIP-155 </label>
           </div>
diff --git a/app/scripts/main.js b/app/scripts/main.js
index 790f7438fa..d82bc99eb6 100644
--- a/app/scripts/main.js
+++ b/app/scripts/main.js
@@ -128,6 +128,22 @@ if (IS_CX) {
   var mainPopCtrl            = require('./controllers/CX/mainPopCtrl');
   var quickSendCtrl          = require('./controllers/CX/quickSendCtrl');
 }
+
+// prepare some variables
+var nodeList = {};
+if (typeof selectedNetworks !== 'undefined') {
+  var found = 0;
+  selectedNetworks.forEach(function(n) {
+    if (nodes.nodeList[n]) {
+      nodeList[n] = nodes.nodeList[n];
+      found++;
+    }
+  });
+  if (found > 0) {
+    nodes.nodeList = nodeList;
+  }
+}
+
 var app = angular.module('mewApp', ['pascalprecht.translate', 'ngSanitize','ngAnimate']);
 app.config(['$compileProvider', function($compileProvider) {
   $compileProvider.aHrefSanitizationWhitelist(/^\s*(|blob|https|mailto):/);
diff --git a/gulpfile.js b/gulpfile.js
index 18a51980a2..1cd5da81de 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -30,6 +30,13 @@ const dist_CX      = './chrome-extension/';
 // default Settings
 const Settings     = require('./config.default.json');
 
+// get selected nodeList to override the nodes.nodeList
+let selectedNetworks, i = process.argv.indexOf("--networks");
+if (i > -1 && process.argv[i + 1]) {
+    selectedNetworks = process.argv[i + 1].split(",");
+    console.log("Selected networks =", selectedNetworks);
+}
+
 // load custom settings
 try {
     let local = require('./config.json');
@@ -124,13 +131,23 @@ let js_srcFile = app + 'scripts/main.js';
 let js_destFolder = dist + 'js/';
 let js_destFolder_CX = dist_CX + 'js/';
 let js_destFile = 'etherwallet-master.js';
-let browseOpts = { debug: true }; // generates inline source maps - only in js-debug
+let js_opts = {}; // browserify opts
 let babelOpts = {
     presets: ['es2015'],
     compact: false,
     global: true
 };
 
+// have selected nodes ?
+if (selectedNetworks) {
+    // setup browserify opts
+    js_opts.insertGlobalVars = {
+        selectedNetworks: function() {
+            return JSON.stringify(selectedNetworks);
+        }
+    };
+}
+
 function bundle_js(bundler) {
     return bundler.bundle()
         .pipe(plumber({ errorHandler: onError }))
@@ -155,17 +172,18 @@ function bundle_js_debug(bundler) {
 
 
 gulp.task('js', function() {
-    let bundler = browserify(js_srcFile).transform(babelify).transform(html2js);
+    let bundler = browserify(js_srcFile, js_opts).transform(babelify).transform(html2js);
     bundle_js(bundler)
 });
 
 gulp.task('js-production', function() {
-    let bundler = browserify(js_srcFile).transform(babelify, babelOpts).transform(html2js);
+    let bundler = browserify(js_srcFile, js_opts).transform(babelify, babelOpts).transform(html2js);
     bundle_js(bundler)
 });
 
 gulp.task('js-debug', function() {
-    let bundler = browserify(js_srcFile, browseOpts).transform(babelify, babelOpts).transform(html2js);
+    js_opts.debug = true; // generates inline source maps - only in js-debug
+    let bundler = browserify(js_srcFile, js_opts).transform(babelify, babelOpts).transform(html2js);
     bundle_js_debug(bundler)
 });