If you are looking to use a premium feature such as privacy or custom logo, you will need to upgrade your account to PRO.
Make sure your viewers see exactly what you want to show them!
After uploading your images, click the "Editor" button.
Once inside the Editor, rotate the 360 Canvas and and find the correct orientation. Note that this only allows lateral orientation.
Once you're found the correct orientation click on the "Frame" button. Et voila!
To orient all your pictures in one go, the best way to proceed is to use the Carousel at the bottom of the Editor screen. Click all the images in the Carousel from left to right to work your way through. You can open at any time the settings panel by clicking on the gear icon.