Those who are included in the beta test wont see the Tools tab, but instead will be able to access AdWords tools by clicking on the Opportunities tab, and scrolling down the menu.

There is a more tools link that will show the full list.Ultimately we want the Opportunities section of your account to evolve into a single destination you can visit whenever you want to get new ideas for increasing your ad coverage on relevant search terms, capturing additional clicks in your most profitable campaigns, or simply improving your overall ROI, says Kelly.Google says it hopes to provide a broader set of optimization tools in the future, and that the Opportunities tab is just a starting point for this. Users can expect more changes to come, and the plan is to take the beta testing to advertisers all over the world in the coming weeks.