diff --git a/assets/js/components/conversations/chatWindows.js b/assets/js/components/conversations/chatWindows.js
index 70cd9605..9e8b1f70 100644
--- a/assets/js/components/conversations/chatWindows.js
+++ b/assets/js/components/conversations/chatWindows.js
@@ -535,7 +535,7 @@ const ConvChatWindow = {
 		};
 
 		//Create the conversation form
-		var settingsForm = ComunicWeb.components.conversations.utils.createConversationForm(settingsPane);
+		const settingsForm = ConversationsUtils.createConversationForm(settingsPane);
 
 		//Update form informations
 		settingsForm.createButton.innerHTML = "Update settings";
@@ -555,22 +555,19 @@ const ConvChatWindow = {
 
 			//We hide conversation users (presents in members pane)
 			settingsForm.usersElement.parentNode.style.display = "none";
+
+			settingsForm.allowEveryoneToAddMembers.parentNode.parentNode.remove();
 		}
 
 		//Update follow conversation checkbox status
-		if(conversation.infos.following == "1"){
-			$(settingsForm.followConversationInput).iCheck("check");
-		}
-		else {
-			$(settingsForm.followConversationInput).iCheck("uncheck");
-		}
+		$(settingsForm.followConversationInput).iCheck(conversation.infos.following == "1" ? "check" : "uncheck");
 
 		//Save settings form in global form
 		conversation.settingsForm = settingsForm;
 
 		//Make update settings button lives
-		settingsForm.createButton.onclick = function(){
-			ComunicWeb.components.conversations.chatWindows.submitUpdateForm(conversation);
+		settingsForm.createButton.onclick = () => {
+			this.submitUpdateForm(conversation);
 		};
 
 		//Success
@@ -633,13 +630,15 @@ const ConvChatWindow = {
 				return false;
 			}
 
+			newValues.canEveryoneAddMembers = conversation.settingsForm.allowEveryoneToAddMembers.checked;
+
 		}
 
 		//Now, freeze the submit button
 		conversation.settingsForm.createButton.disabled = true;
 
 		//Peform a request through the interface
-		ComunicWeb.components.conversations.interface.updateSettings(newValues, function(result){
+		ConversationsInterface.updateSettings(newValues, function(result){
 			
 			//Enable again update button
 			conversation.settingsForm.createButton.disabled = false;
diff --git a/assets/js/components/conversations/interface.js b/assets/js/components/conversations/interface.js
index 896a5a09..ffb92496 100644
--- a/assets/js/components/conversations/interface.js
+++ b/assets/js/components/conversations/interface.js
@@ -134,6 +134,9 @@ const ConversationsInterface = {
 		if(infos.following !== undefined)
 			params.following = infos.following;
 
+		if(infos.canEveryoneAddMembers !== undefined)
+			params.canEveryoneAddMembers = infos.canEveryoneAddMembers;
+
 		//Perform API request
 		ComunicWeb.common.api.makeAPIrequest(apiURI, params, true, function(result){
 			//Empty the cache (considered as deprecated)
diff --git a/assets/js/components/conversations/utils.js b/assets/js/components/conversations/utils.js
index 190d596c..2bdd846f 100644
--- a/assets/js/components/conversations/utils.js
+++ b/assets/js/components/conversations/utils.js
@@ -79,12 +79,12 @@ const ConversationsUtils = {
 	 * Create and display a conversation creation / edition form
 	 * 
 	 * @param {HTMLElement} target The target of the creation form
-	 * @return {Object} Informations about the form
+	 * @return {ConversationSettingsFormElements} Information about the form
 	 */
 	createConversationForm: function(target){
 
 		//Create form object
-		var form = {};
+		const form = {};
 
 		//Create and display conversation creation form
 		form.rootElem = createElem("div", target);
@@ -109,13 +109,21 @@ const ConversationsUtils = {
 			placeholder: "Optionnal", 
 			type: "text"});
 
-		//Follow disucssion
+		// Follow discussion
 		form.followConversationInput = createFormGroup({
 			target: form.rootElem, 
 			label: "Follow conversation", 
 			checked: true,
 			type: "checkbox"});
 
+		// Allow all the members of the conversation to add other members
+		form.allowEveryoneToAddMembers = createFormGroup({
+			target: form.rootElem,
+			type: "checkbox",
+			checked: true,
+			label: "Allow everyone to add members" 
+		});
+
 		//Create button
 		form.createButton = createElem2({
 			type: "button", 
diff --git a/assets/js/typings/Conversations.d.ts b/assets/js/typings/Conversations.d.ts
new file mode 100644
index 00000000..aecbf5b4
--- /dev/null
+++ b/assets/js/typings/Conversations.d.ts
@@ -0,0 +1,13 @@
+/**
+ * Conversations typings
+ * 
+ * @author Pierre Hubert
+ */
+
+declare interface ConversationSettingsFormElements {
+	rootElem: HTMLElement,
+	usersElement: HTMLElement,
+	conversationNameInput: HTMLElement,
+	allowEveryoneToAddMembers: HTMLElement,
+	followConversationInput: HTMLElement,
+}
\ No newline at end of file