Yes! You can easily edit any of your event details at any time from within your MyCityScene account at https://mycityscene.com/customer/event/list
Simply sign in, click on My Events and then click on the Event Title to open the Event Edit Screen.
When you are done editing your event, click "update" and the changes will appear immediately throughout our network. If you are a free user, your updated event will appear as soon as it is approved.