How do I add a beneficiary on Shyft?

Could you please walk me through the steps of adding a beneficiary on Shyft? I'm not sure how to go about it and would appreciate your guidance. Specifically, what information do I need to provide for the beneficiary, and how do I ensure that the process is completed correctly and securely? Is there a limit to the number of beneficiaries I can add, and are there any fees associated with this process? Thank you in advance for your assistance.