index.js

beforeEach( function() {
  window.logCalls = 1;
});

Cypress.Commands.overwrite('log', (originalFn, message) => {

  Cypress.log({
    displayName: `--- ${window.logCalls}. ${message} ---`,
    name: `--- ${window.logCalls}. ${message} ---`,
    message: ''
  });

  window.logCalls++;

});