As a Space admin, you can use the Status setting to manage member roles.
Available roles:
Admin
Can invite members, remove members, and change other users' roles. Some features require admin permissions.
Member
Can invite other users and leave a Space.
Availability
You must be a Space admin to change a user's role.
Steps (iOS)
To change a user's role in a Space:
Log in as an admin of the Space you want to manage.
Select Content.
Select Space.
Select the user whose role you want to change.
Use the Status setting to change their role.
Select the back arrow to save your changes and exit.
Related content
Other platforms:
