Creating an Account
If you want to create a new roadmap, you need to create a new account.
To create a new account, you will need to provide a name, an email (which will be your userid for login), a password and an organization.
The Role of an Organization in an Account
When you create an account and provide the name of an organization, you are also creating a new roadmap for that organization. The roadmap is then associated with that organization. Therefore, the organization you provide must be unique.
This is really a security measure. By creating an account for an organization that already exists, you will not be able to view that organization's roadmap. You need explicit permission from the adminstrator of that organization to view their roadmap. They would need to send you an invitation.
At this time, if you want to view two different roadmaps, you will need two distinct accounts (including email addresses for login.)