scenario definition configuration required or Not required ?

Hi ,

I am trying to configure "Approve Leave Requests" Fiori App (X1).

and I am referring this link : http://help.sap.com/fiori_bs2013/helpdata/en/88/a2675283776f2de10000000a44176d/content.htm?frameset=/en/d9/23c352fb99d142e10000000a4450e5/frameset.htm&current_toc=/en/ba/954353a531e647e10000000a441470/plain.htm&node_id=371

It does not say anything about scenario definition, and related customizations.

Previous version this settings were required, I am not sure it is required now OR not required.

Please provide me any other better document or link exist for this requirement.

Best Regards,

Selva