Hello Satos,
(1) There also have an IDE KDS , its free , and in the future, all of the support of the kinetis will design on KDS .
you can download it here :
https://freescale.flexnetoperations.com/control/frse/product?entitlementId=123588587&lineNum=1&authC...
(2) On CW, create and build project you can refer to : ..\ Freescale\CW MCU v10.6\MCU\Help\Quick_Start_for_Microcontrollers.pdf
and "Freescale\CW MCU v10.6\MCU\Help\PDF\AN4902.pdf"
About PE, you can refer to : \Freescale\CW MCU v10.6\MCU\Help\PDF\ProcessorExpertHelp.pdf
(3) About example , for example , about the ADC ,after you create a project ,add ADC component , then you can refer to the "Typical Usage"
of help on component : (CW and KDS all have )

If you still have any question , please contact us !
Hope it helps
Alice