To change the default account used by the Tailwind browser extension, open the Pin Scheduler, click the ⋮ ("Schedule options") menu and choose Settings, then pick your preferred account from the Default extension account drop-down. These Pin Scheduler settings replaced the old "Global Pin settings" button.
If you want to change the default account used by the Tailwind browser extension for adding drafts and scheduling Pins:
Go to the Pin Scheduler in your Tailwind dashboard.
Open the ⋮ ("Schedule options") menu and choose Settings. (These Pin Scheduler settings replaced the old "Global Pin settings" button.)
Under Default extension account, use the drop-down to select the account you want.