Doc benefits integrating Substation with Projectwise

Hello,

For evaluating and ROI purposes, we are looking for any info/docs/ppt's/video's that explain benefits of integrating Bentley Substation CE in ProjectWise.

What are the possible configurations ? still need Substation database outside of ProjectWise ? sync ? Can plain vanilla MicroStation users also work on Substation dgn's, or Ref only ?

Thank you very much in advance for your help,

Best regards,

Nicolas Tobback