In recent releases of S32DS (Power v2017.R1, ARM v2.0, Vision v2.0) is new feature - you can add custom example into example list by copy example folder into [S32DS_INSTALL]\S32DS\examples path:
If you select New project from example - you can see your recently added project in User Examples folder. You can filter all examples by name or MCU model (for example all examples for S32K148):
Another useful improvement is possibility rename project before is inserted into active workspace. It allows you to have more projects based on the same example:
If in your project folder is present description.txt file - the content of the file is shown in Create project dialog: