Have your friends sign up for an account.
Tell your friends to sign up for an account at https://grow.edntech.com
Hit 'NO' when it asks whether you're setting up a new SmallGarden.
Have them enter your email address below and hit 'JOIN'.
Go to your Profile.
Go to your profile and refresh the page. Click on the invites section. To approve their request, hit the green check mark where their email is listed.
You can then choose the SmallGardens that you want to share with them.
Your friend will now be able to see how your SmallGarden is doing, change the light schedule, light settings etc. However, only you, the original owner, will be able to set time zone, edit the name, invite other friends, and re-pair your SmallGarden.