diff --git a/CHANGELOG.md b/CHANGELOG.md
index 184345281..b98eaa500 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -101,3 +101,4 @@ Branch CRUD-Init
 - css: add an extra space around choices expanded widget
 - add Tabs parametric feature to easily render tabs panels
 - css: add a margin on the button "delete entry" in collection
+- module `show_hide`: add the possibility to launch a show hide manually and not on page loading. Useful when show/hide occurs in collection.
diff --git a/Resources/public/modules/show_hide/show_hide.js b/Resources/public/modules/show_hide/show_hide.js
index a634df212..f22064433 100644
--- a/Resources/public/modules/show_hide/show_hide.js
+++ b/Resources/public/modules/show_hide/show_hide.js
@@ -23,9 +23,14 @@ var ShowHide = function(options) {
         container = typeof options.container[Symbol.iterator] === "function" ? options.container : [ options.container ],
         is_shown = true,
         event_name = 'event_name' in options ? options.event_name : 'change',
-        container_content = [];
-
-    window.addEventListener('load', function(event) {
+        container_content = [],
+        debug = 'debug' in options ? options.debug : false,
+        load_event = 'load_event' in options ? options.load_event : 'load';
+    
+    var bootstrap = function(event) {
+        if (debug) {
+            console.log('debug is activated on this show-hide', this);
+        }
         // keep the content in memory
         for (let c of container.values()) {
             let contents = [];
@@ -39,6 +44,9 @@ var ShowHide = function(options) {
         for (let f of froms.values()) {
             let inputs = f.querySelectorAll('input');
             for (let input of inputs.values()) {
+                if (debug) {
+                    console.log('attaching event to input', input);
+                }
                 input.addEventListener(event_name, function(e) {
                     onChange(e);
                 });
@@ -46,8 +54,8 @@ var ShowHide = function(options) {
         }
 
         // first launch of the show/hide
-        onChange(event);
-    });
+        onChange(event);    
+    };
 
     
     var onChange = function (event) {
@@ -77,6 +85,13 @@ var ShowHide = function(options) {
         }
         
     };
+    
+    
+    if (load_event !== null) {
+        window.addEventListener('load', bootstrap);
+    } else {
+        bootstrap(null);
+    }
 };
 
 export {ShowHide};