This resource gives guidance on how to copy your 8/2 live session Template Course into another shell and then change that course into an a 16 week, 1 live session per week course.
Step by Step Guide
Step 1: Select the course: 8 Module/2 Live Sessions Per Module Hyflex Undergrad and Grad
Step 2: Go to Settings  and select Copy this Course 
Step 3: Choose All Content  and click on Create Course 
Step 4: Once it’s done processing, click on the course you just copied
Step 5: Go to the Modules page and scroll to Module 1 (Insert dates here – Monday to Sunday) and go to Live session 1 
Note: Once you make these changes you will have to set the due dates for the assignments  and  and the dates for the modules . If you want to have one 2.5 hour session per week, follow the documentation for bringing an 8/2 template to an 8/1.