This document will demo how to add more event dates to a live event. A video demo is below. 

Go to EVENTS>OPEN EVENTS>from the select action menu on the event you'd like to add dates to, select MANAGE EVENT DATES. The page you will be presented with should look like this:
Image Placeholder
From this page, you will be able to see the all the existing event dates. In the upper right corner of the screen, select ADD DATE. Input the event date / time, the venue info, and you can limit the ticket qty if applicable. 

After a new date is added, select Image Placeholder at the bottom of the slide-out menu. This will take you to the MANAGE TICKETS page. Here, you can apply your pricing template to the new dates by clicking the LOAD PRICING TEMPLATE button in the upper right corner of the screen.

Note: Don't forget to edit the ticket on sale times if you choose to copy the event date with the tickets attached. To learn how to edit the ticket sale times, use this help doc -  Edit ticket sale times