Hi
A1: Unfortunately, there is no current way to install multiple RTD packages in the same instance, as a workaround, you can install multiple instances for S32DS like:
S32DS.3.6.6_S32K3_RTD300
S32DS.3.6.6_S32K3_RTD600
and then install specific RTD to each instance.
A2: The installation process for S32DSv3.6.x is no longer as complicated as that for S32DSv3.5.x.
Please watch the video: How To Download, Install and Configure the RTD 5.0.0 with S32 Design Studio 3.6.0
At 3:40 in the video RTD5.0_download_install_configure.mp4, you will see many examples after the S32K3 RTD is installed.
For you, you need to download and install S32K3 Real-Time Drivers Version 3.0.0 (SW32K3_RTD_4.4_R21-11_3.0.0_D2303_DS_updatesite.zip), not RTD 5.0.0.
Note install NXP GCC for Arm Embedded Processors v10.2 build 1728

Best Regards,
Robin
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