Navigate to the Configuration tab. If you have not edited the appsettings.json, a blank screen is displayed.
The other tabs are enabled after selecting a Data Source in the upper left corner of the window.
To create a new connection string:
You can also edit or remove existing connection strings. To edit an existing connection string, select the string and click Edit. To remove an existing connection string, select the connection string and click Remove. Upon editing or removing a connection string, you must save the updated information to the JSON configuration file. See Saving Connection strings to JSON Files for more information.