There are 2 ways to generate a Will Call list for an event.
The easiest way would be to click on the Event you are looking to generate this list for and go to the Reports tab. [Image below]
Change the Report type to manifest, scroll down and check the box next to 'Delivery Method' and run the report. After exporting to excel arrange the list alphabetically for ease of use at the door.
Note: This report will repeat the ticket purchaser's name for each individual ticket they purchased. This allows you to cross each ticket off as people show up to your event.
Alternatively, you can run the same report from your main Reports page, but will also have to use the event filter to filter for the appropriate event(s).