Space admins have the ability to add, remove, and promote fellow members to admins within the given Space. A Space admin cannot add, remove, or promote members on the team level.
How do I promote a member to a space admin?
Navigate to the correct Space. (You must be in the space to administer it, and users must be members to be promoted.)
In the Space, select the "People" header along the top of the space.
When the “People” screen is displayed, select the dropdown on the name of the member that should be promoted to Space admin.
From that dropdown choose the "Admin" option to promote them.
How do I demote a space admin to member?
When the “People” screen is displayed, select the dropdown next to the name of the member that should be demoted to Space member. from there choose “Member" to demote them.