Looking to add multiple accounts to your Base profile? Follow the steps outlined below.
Navigate to your User Settings by clicking the drop down menu in the upper right hand corner and selecting User Settings.
On the Connected Accounts tab, select Add additional, and follow the prompts to add a new account.
Once you have added any new accounts, navigate to Workspace Settings by selecting the workspace from the list on the left hand side, or clicking into the drop down menu at the top of the screen, selecting Workspace Settings, then selecting the appropriate workspace.
Inside your Workspace Settings, go to your Connected Calendars tab and select the calendars you want to sync to that Base Workspace. Click Save to close out the process.