It's in the ProjectWise Server installs now. Not sure on your 2nd questions.
2 powershell cmdlets: Get-PWRichProjects to fetch a list of Rich Folders from the datasource. Then pipe the folder list to Update-PWRichProjectProperties to update the properties in those folders.
requires the PWPS_DAB module.
Yes, ProjectWise 10.00.01.67 and above support Oracle 12C. For more information on this release please see communities.bentley.com/.../124888