Just use Livingtree’s direct messaging found in the Inbox section of your account.
This functions similarly to email within Livingtree so that you can message privately to an individual or a small group.
Just type a name in, and given they are connected to you in your Livingtree network, their names will show up. Select, type, and send.
More details found here.
If you have any questions or need further assistance, please, contact Livingtree at firstname.lastname@example.org.