Hello Jerry,
I'd suggest you to create your custom SDK that will copy all the files into a project.
1) go to SDK Management dialog (menu Window -> Preferences -> SDK Management)

2) Click "Add..." to create a new SDK and enter Name, Version, Description

3) Browse to select SDK source path ("c:\NXP\S32DS_ARM_v1.3\S32DS\S32_SDK_KEA_1_0_0")

4) Select all / Copy all the sources and headers


5) Now your workspace contains a new SDK

6) You can create a new project now and your new SDK should be available in the list of SDKs so select it and finish the wizard.

Your project should now contain a copy of entire source folder structure (+ include paths):

Hope it helps.
Stan