By default there are 2 different types of accounts:
Super-admin account - the major account that is used for making settings and. Also, Super-admin has an opportunity to work directly with end-user conversations.
Operator account - accounts are created (How to add operators?) by a super- admin and required to work directly with end-user conversations. Also, there is the possibility to expand the permissions for this type of account (Role permission details)
Operators aren't able to sign up yourself. Only super-admin can invite operators.
If you need the account that will be used to manage (control, analyze, etc.) performance of operators, we suggest to use super-admin account or create a separate operator account and expand the permissions for this one.