Hi,
We did not implement this to be automatically done yet. We'll add it in a future release. Till then, you can work around the issue by adding a custom command with post build step (in CMakeLists.txt) like in the example below:
ADD_CUSTOM_COMMAND(TARGET ${MCUX_SDK_PROJECT_NAME} POST_BUILD COMMAND echo ${EXECUTABLE_OUTPUT_PATH}/${MCUX_SDK_PROJECT_NAME})

Some other example, if you import from SDK a multicore project, core1 is generating a bin from an executable file in a similar post build command:
ADD_CUSTOM_COMMAND(TARGET ${MCUX_SDK_PROJECT_NAME} POST_BUILD COMMAND ${CMAKE_OBJCOPY}
-Obinary ${EXECUTABLE_OUTPUT_PATH}/${MCUX_SDK_PROJECT_NAME} ${EXECUTABLE_OUTPUT_PATH}/core1_image.bin)
Regards,
Cristian