Hi @cryoman196,
To clarify further:
When you sign-up for odrive you pick a “authenticating account”. This is essentially the first account you link to odrive, but it will also act as the authenticating account for when you want to log into odrive at any point in the future. So, if you chose Google as the account used when you signed up, Google Drive would be linked as part of the sign-up process and you would use your Google account to log into odrive from that point forward.
When you want to add additional accounts to odrive (OneDrive or Dropbox, for example), you will sign into odrive (again using the original account you used to sign up), then click on “Link Storage” from your account home page on the odrive webclient:
https://www.odrive.com/account/myodrive
From there you choose the storage you want to add into your odrive account.