If you were using the automated title page, it's super easy to add a new one. Here's how to do that:
Click on the three dots located next to the 'Add Chapter' button. From the pop-up menu that appears, select 'Title Page' to create a new automated title page.
Once the new title page is generated, you can drag it into the desired position within your document. Simply click and hold the title page, then move it to the appropriate location.