Once you're in Practice HQ, you can begin setting up client accounts. Choose the "Create new account" button from this screen:
These steps are the same as in the regular Mayday onboarding flow, detailed here: https://help.getmayday.com/en/articles/6934372-connect-your-orgs-and-create-your-group
It's best practice to create one account per client, allowing you to more easily manage the permissions of your team and the separation of data. This also allows you to tailor the Mayday experience (products, configuration, etc.) for each client.
Once you've set these up, you'll see headline information about each account on the dashboard. You'll get an overview of the connection status for each of the orgs connected to the account:
From this screen, you can easily assign teammates to each client account by clicking on the data in the "Team access" column:
You can jump into Mayday to work with the account from this screen as well, by hovering over the row and clicking "Open in Mayday":




