If you have access to more than one ecosystem, this article explains how to easily switch between them. This is true whether you have admin access or read-only access.
Select the ecosystem you want to access.
Each ecosystem will note the level of access you have: either admin or read-only.
If you do not see an ecosystem listed, the most likely issue is that you have not been added to it by an admin user.
Contact an admin user for that ecosystem and ask them to add you in their account settings.