AEM 6.3 Style sytem - Not able to view styles tab & Policy icon in component policy
We have followed the link Style System for including style system. But when we click on the policy tab of the List component we are not able to view styles tab as mentioned in the blog.

But in the blog they mentioned as

Do we need to enable anything for the styles tab to appear.
And also for the project related components we are not able to see the policy icon

Can you please suggest why we are not able to see the styles tab in the policy & policy icon in the allowed components.
Thanks & Regards,
Kalyani