Yes, follow these rule to set it up:
1. Navigate to the Easy Editor, switch to the HTML & CSS Editor, then choose the Friend Reward Paid Email view preset;
2. Go to the “Extra” tab in the Friend Reward Paid email view;
3. Look for the “Delay email sending for: Hours since action” field and input the preferred delay in hours (1 hour in this case).
*If the code was used, the email won’t be triggered.