If you have more than one property to manage (e.g. you are a owner of two hotels, or of a hotel chain), you can simply add an extra property by clicking on your email address on the top-right corner of the screen:
Then, click on [Add Property Button]
Lastly, enter your new property's information, and proceed with creating the property by clicking on the green [Add Property Button]
After creating the property, you will want to setup the newly created property.
For more information on how to setup Roomsy, please watch this video: https://roomsy.groovehq.com/knowledge_base/topics/how-to-setup-roomsy-video