Hi Yogendra,
unfortunatelly, app "manage your solution" is not available yet for 1511 on premise, only in cloud version, in s/4 hana 1511 on premise customizing is still done through traditional IMG, you can check it out in this restriction note:
2234180 - SAP S/4HANA Application “Manage Your Solution“
Also check opensap course: Implementation of SAP S/4HANA , for further information on current implementation possibilities.
Best regards,
Tomislav