Hi,
just click on Window -> Show View -> Project Explorer.
If you want to use SDK, use MPC5777C examples for reference:
c:\NXP\S32DS_Power_v2.1\S32DS\software\S32_SDK_S32PA_RTM_3.0.3\examples\MPC5777C\
Then just create new empty example for MPC5775E and do the same configuration in Processor Expert and copy the code. We do not have such examples build directly for MPC5775E.
Regards,
Lukas