diff --git a/js/index.js b/js/index.js
index 8e7b6d4..f999fef 100644
--- a/js/index.js
+++ b/js/index.js
@@ -353,7 +353,7 @@ function handleCustomApp(appTemplate) {
 
         getInstalledApps()
           .then(()=>checkDependencies(app))
-          .then(()=>Comms.uploadApp(app,{device:device, language:LANGUAGE}))
+          .then(()=>Comms.uploadApp(app,{device:device, language:LANGUAGE, noFinish: msg.options && msg.options.noFinish}))
           .then(()=>{
             Progress.hide({sticky:true});
             resolve();
diff --git a/lib/customize.js b/lib/customize.js
index d8a45f4..7d0251f 100644
--- a/lib/customize.js
+++ b/lib/customize.js
@@ -33,6 +33,9 @@ onInit({
 });
 ```
 
+Pass `{ noFinish: true }` as the second argument to skip reloading
+the connected device.
+
 If no device is connected, some fields may not be populated.
 
 This exposes a 'Puck' object (a simple version of
@@ -58,11 +61,12 @@ Util.saveCSV(filename, csvData)                 // pop up a dialog to save a CSV
 Util.showModal(title)                           // show a modal screen over everything in this window
 Util.hideModal()                                // hide the modal from showModal
 */
-function sendCustomizedApp(app) {
+function sendCustomizedApp(app, options) {
   console.log("<CUSTOM> sending app");
   window.postMessage({
     type : "app",
-    data : app
+    data : app,
+    options
   });
 }