dear tania,
one community account is enough to allow your team to work, infact you can add as collaborator to your community account other basic accounts.
I would follow the following steps:
- ensure people that need to have access to your cloud resources have a fiware lab account (basic - that is not limited in number of users - is perfect). if for any reason the account was deleted they can re-register.
- log-in using your community account at https://account.lab.fiware.org
- click on "organizations"
- select the cloud organization of your community account (usually something like "account-name cloud"
- in the member panel click on "Manage"
- in the "All Users" panel search the name of your collaborators and add them to the members.
this should be enough to allow your team to access your cloud deployments!