After logging in, make sure you are on the Pages list of the account.
Click the Create Page button on the right.
Create a page from a template or from scratch, or upload a .instapage file of a page that you previously downloaded.
If you select Standard page you can start with a blank page or choose one of our premade conversion-optimized layouts. After selecting an option, you will be taken to the Experience Manager of the default experience of the new page so you can start customizing it.