Sentry: Configure context to sort issues

In react app I want to sort all issues by tag or transaction name, and assign different people depending on the part of the app where this issue happened.

I tried to create a scope but it's applied to all issues.

  Sentry.configureScope((scope) => {
    scope.setTransactionName("Test Transactions");
    scope.setLevel("log");
    scope.setTag("test", "test");
    }
  );

How can I achieve my goal?