If you want to change the Google account with which you logged-in to Station, just follow theses simple steps:
Add another Gmail or Gsuite account to your Station
Logout from Station
Pick the Google account you wish to login with.
⚠️ Please bear in mind that for the moment, Station does not sync across devices (it's on the roadmap though). So even if you login with the same account on another computer, you'll have to set-up you Station again.
Stay safe 😘