We love to hear your feedback. Your suggestions and ideas are important to us. Our feedback forum is a great place to post your ideas and vote on others. Please share your detailed use case and how the proposed enhancements can increase value to your business. We do read all of your posts, but may not be able to respond to all comments.
More information on the status of submitted ideas can be found here
You can configure application sources and application source groups in system settings.
Search for "Application Sources". Referal is usually one of the defaults.
There is also a way to configure a formal referal program to record the employees performing the referrals. (for example if you have a rewards program for referrals)
Please speak to support if you need further information