I would like to add the sealing information for my family. The info box says that only I can see and modify that information, but I'm not seeing a screen or a link to do that.
Unfortunately, ordinances for living individuals is not available within FamilySearch for living individuals for privacy reasons. The help article below explains this policy.
Why are ordinances "Not Available" for living people?
Article Id: 1556
April 20, 2020
Ordinances of living people are listed as "Not Available" in Family Tree for privacy reasons. Some examples are below:
Family Tree sometimes displays "BIC (Born in the Covenant)" for a living person's sealing to parents.
You can view membership and ordinance information for yourself and minors living in your household on ChurchofJesusChrist.org, in the Member Tools app, or through a ward or branch clerk.
Sealing to Spouse ordinance listed as "Not Available" in Family Tree
In Family Tree, what does "Not available" mean?
Policy for sealing living members after a spouse dies
Sealings to deceased family members