Where can I enter credentials for TFS access
I'm missing an option to add credentials to TFS. Is it not there?
Good news. This has been implemented in SQL Source Control 126.96.36.199, which will download if you check for updates.
By default it will try and use your windows credentials for TFS, however if that fails you will now be prompted to enter new credentials.
Full release notes on http://documentation.red-gate.com/display/SOC3/SQL+Source+Control+3.4+release+notes