Dear Ulus,
This can be achieved using the xml file name "SybaseCRM.Configuration.xml" file, details of this file is provided in following sections of the "Setup and Configuration Guide" on SMP.
12.1.1 Appendix A – Modifying the Main Menu for BlackBerry 12.2.1 Appendix A – Modifying the Main Menu for iOS 12.3.1 Appendix A – Modifying the Main Menu for Windows
Following is the location of the guide on Service Market Place
http://service.sap.com/instguides
SAP Components --> SAP Mobile Applications --> SAP Business Suite --> SAP CRM Sales --> SAP CRM Sales 2.0
Hope this answers your questions.
Best Regards,
Sirish Gullapalli.