You can create and edit pages by using the Pages tool with the Add Page button (Page View reproduced below) or the Blueprint Editor's + Insert Page button (Blueprint View reproduced below).
Page View:
Blueprint View:
Edit Existing Pages
You can edit existing pages by using the Edit pencil icon on the Pages tool page (Page View reproduced below) or the Blueprint Editor's Edit Page pencil icon (Blueprint View reproduced below).
Page View:
Blueprint View:
Edit from Preview
You may also edit pages while previewing pages by clicking the arrow on the bottom right of a page to Edit in Smart Author. The Smart Author editing page will open in a new browser tab.