Standalone Programming is widely used when user doesn’t need a debugger for programming in CodeWarrior 10. Thus people only uses elf/s19 file to program target without using project and source files.
There is a very famous article written by Erich Styger regarding using “Flash File to Target” as a standalone programmer for target programming.
https://mcuoneclipse.com/2012/08/02/standalone-flash-programmer/
Besides this method, Flash Programmer Task is also good for standalone programming. As I know some customers prefer to use this method because it can also do checksum, dump flash,etc during programming. I will introduce how to utilize Flash Programmer Task step by step in the following for brainstorming. This article is based on CodeWarrior 10.6.4 and FRDM-K64 board, but the method is same for all Kinetis,HCS08,HCS12Z,etc devices
For detail, see attached article and video.