This Post Show How-to Create a New Application Launcher on Linux Rosa 21012 Marathon Kde 4 Desktop.
The Practical Example Here Illustrated is About Adding the Firefox Nightly Entry inside to the Internet Section on a Rosa Linux Distro.
The Essential Tip to Take Into Account if that the Alacarte Tool Need to be Fired-Up as Normal User and Not as SuperUser...
The Technique is Useful for Adding Any New Software on Rosa 2012 Marathon Linux Desktop.
- Open a Terminal Window
Start Menu Search Terminal

- Fire-Up Kmenuedit Tool
kmenuedit
- Click on New Item Buttton
Insert App Name
- Click on Icon Place to the Right
Browser for the App's Icon.
If you Do Not Find Icon then Look How-to Use Locate Command Here:
Linux How-to Locate CommandSave
- Complete with Description and Command
Eventually you Can Browse the File System to Find the Executable in Question.
- The New App Launcher on Desktop