Tabs Studio is a Visual Studio and SSMS extension empowering you to work comfortably with any number of open documents.
v4.7.0 adds support for integrated vertical tabs in VS 2019 v16.4. More specifically, when vertical tabs are activated in VS 2019, Tabs Studio reuses this area to show tabs, instead of showing them in a separate tool window:
See the full what’s new list. Download the installer.