1. Make sure all of the Events have the same name
2. From the Course screen go to Events> Linked Events> Linked Events Listing
3. At the top, click Options and select Non-Linked Events
4. Choose the Event Type for your Events from the dropdown menu
5. Click the # under the Count column (it should indicate the number of Events you are converting)
6. Click Create Linked Event
7. Now if you navigate back to your list of Linked Events you will see the LE template, click the count and modify as needed.

For more info refer to Linked Events: Non-Linked Events