Hi,
The standalone release can be located by using the product search from your account: SW574XG-SDK1-EAR-0.8.0, or by accessing the following link: http://www.nxp.com/webapp/swlicensing/sso/downloadSoftware.sp?catid=SW574XG-SDK1D
The eclipse integration will be available in the 1.2 release of S32 Design Studio for Power - current estimation is mid of June 2017.
Regards,
Iulian