What is meant by "allow guest opponent supplements"?

This settings allows a guest opponent supplement to be added to the cost of booking activities. If an activity requires opponent selection, a member selecting another member will be free, whereas you have the option to charge a supplement if they are bringing a guest.

1. Go to Settings > Bookings > Booking features. 

2. Set the Allow guest opponent supplements option to Yes.

3. Click Update details at the bottom of the page.

4. Go to Settings > Activities.

5. Click on an activity to open it up.

6. Scroll down and click on the Opponent selection green cross symbol. 

7. Enter the off-peak and peak opponent supplement prices. 

8. Click Update activity.