diff --git a/umap/models.py b/umap/models.py
index c69b3f93..5efe3aba 100644
--- a/umap/models.py
+++ b/umap/models.py
@@ -251,6 +251,11 @@ class Map(NamedModel):
         path = reverse("map_anonymous_edit_url", kwargs={"signature": signature})
         return settings.SITE_URL + path
 
+    def is_owner(self, user=None, request=None):
+        if user and self.owner == user:
+            return True
+        return self.is_anonymous_owner(request)
+
     def is_anonymous_owner(self, request):
         if not request or self.owner:
             # edit cookies are only valid while the map doesn't have owner
diff --git a/umap/static/umap/js/modules/global.js b/umap/static/umap/js/modules/global.js
index 604cdb3d..dc08b4c1 100644
--- a/umap/static/umap/js/modules/global.js
+++ b/umap/static/umap/js/modules/global.js
@@ -22,7 +22,6 @@ window.U = {
   NOKError,
   Orderable,
   Panel,
-  Panel,
   Request,
   RequestError,
   SCHEMA,
diff --git a/umap/static/umap/js/modules/sync/engine.js b/umap/static/umap/js/modules/sync/engine.js
index 2fac3da8..62568f22 100644
--- a/umap/static/umap/js/modules/sync/engine.js
+++ b/umap/static/umap/js/modules/sync/engine.js
@@ -4,7 +4,7 @@ import {
   MarkerUpdater,
   PolygonUpdater,
   PolylineUpdater,
-  DatalayerUpdater,
+  DataLayerUpdater,
 } from './updaters.js'
 
 export class SyncEngine {
@@ -43,7 +43,7 @@ export class MessagesDispatcher {
       marker: new MarkerUpdater(this.map),
       polyline: new PolylineUpdater(this.map),
       polygon: new PolygonUpdater(this.map),
-      datalayer: new DatalayerUpdater(this.map),
+      datalayer: new DataLayerUpdater(this.map),
     }
   }
 
diff --git a/umap/static/umap/js/modules/sync/updaters.js b/umap/static/umap/js/modules/sync/updaters.js
index 85741f8e..f3cce6d0 100644
--- a/umap/static/umap/js/modules/sync/updaters.js
+++ b/umap/static/umap/js/modules/sync/updaters.js
@@ -45,7 +45,7 @@ export class MapUpdater extends BaseUpdater {
   }
 }
 
-export class DatalayerUpdater extends BaseUpdater {
+export class DataLayerUpdater extends BaseUpdater {
   update({ key, metadata, value }) {
     const datalayer = this.getLayerFromID(metadata.id)
     console.log('datalayer', datalayer, key, value)
diff --git a/umap/static/umap/js/umap.js b/umap/static/umap/js/umap.js
index da31c7d4..1584e6a4 100644
--- a/umap/static/umap/js/umap.js
+++ b/umap/static/umap/js/umap.js
@@ -246,7 +246,7 @@ U.Map = L.Map.extend({
     this.on('click contextmenu.show', this.closeInplaceToolbar)
     this.sync = new U.SyncEngine(this)
 
-    Promise.resolve(this.initSyncEngine())
+    this.initSyncEngine()
   },
 
   initSyncEngine: async function () {
@@ -1498,6 +1498,12 @@ U.Map = L.Map.extend({
     slideshow.appendChild(slideshowBuilder.build())
   },
 
+  _editSync: function (container) {
+    const sync = L.DomUtil.createFieldset(container, L._('Real-time collaboration'))
+    const builder = new U.FormBuilder(this, ['options.syncEnabled'])
+    sync.appendChild(builder.build())
+  },
+
   _advancedActions: function (container) {
     const advancedActions = L.DomUtil.createFieldset(container, L._('Advanced actions'))
     const advancedButtons = L.DomUtil.create('div', 'button-bar half', advancedActions)
@@ -1546,10 +1552,6 @@ U.Map = L.Map.extend({
     const container = L.DomUtil.create('div', 'umap-edit-container')
     const metadataFields = ['options.name', 'options.description']
 
-    if (this.options.websocketEnabled) {
-      metadataFields.push('options.syncEnabled')
-    }
-
     const title = L.DomUtil.create('h3', '', container)
     title.textContent = L._('Edit map details')
     const builder = new U.FormBuilder(this, metadataFields, {
@@ -1584,6 +1586,9 @@ U.Map = L.Map.extend({
     this._editOverlay(container)
     this._editBounds(container)
     this._editSlideshow(container)
+    if (this.options.websocketEnabled) {
+      this._editSync(container)
+    }
     this._advancedActions(container)
 
     this.editPanel.open({ content: container, className: 'dark' })
diff --git a/umap/views.py b/umap/views.py
index f37d5423..34d41045 100644
--- a/umap/views.py
+++ b/umap/views.py
@@ -794,7 +794,7 @@ def get_websocket_auth_token(request, map_id, map_inst):
 
     if map_object.can_edit(request.user, request):
         permissions = ["edit"]
-        if map_object.can_delete(request.user, request):
+        if map_object.is_owner(request.user, request):
             permissions.append("owner")
 
         if request.user.is_authenticated: