A recipient is a person you have chosen to receive your messages when you are gone.
Yes, trustees can be recipients of a message.
You can add a new recipient by logging into your account, then click on "My Recipients", and then "Add recipient".
You can also add a new recipient while you are creating or editing a message.
When you are gone, all your messages and files will be sent to your trustees. Your trustees will receive the instructions on how to deliver your messages to your recipients.