Hi Joao, I also can only share public links with you. If these and also the product documentation, delivered with the downloads, doesn't help, then your only option would be to open a support case, copy your text from this location and wait for a reply.
For a list of related support pages for IBM TRIRIGA, see IBM TRIRIGA Release Information.
https://www.ibm.com/support/pages/node/1284928
Use the following links to find current information about IBM® TRIRIGA® product releases:
Release Notes Provides links to download release notes and readme files for IBM TRIRIGA releases and fix packs.
Compatibility Matrix. Includes a list of application servers, database servers, web servers, third-party servers, third-party components, and operating systems (collectively “Environments”) with which the IBM TRIRIGA Application Platform is certified. This page also includes all archived Compatibility Matrices for IBM TRIRIGA products.
Release Versions for IBM TRIRIGA Includes the type of IBM TRIRIGA release, the platform associated with the release, and, for fix packs, which release includes the fix pack.
The latest version of the Tririga platform: https://www.ibm.com/docs/en/tap/5.0
The latest version of the Tririga Application Suite: https://www.ibm.com/docs/en/tas/11.6 (this document will likely give you most high level information. For example: https://www.ibm.com/docs/en/tririga/11.6?topic=projects-overview-real-estate-planning)
But I agree, in those documents you will not find detailed info like you requested. I also found some training video's. Some are a bit older but maybe still useful:
TRIRIGA Functional Screen Videos: https://video.ibm.com/channel/ypRpcFCaEqE
TRIRIGA New Release Technical Enablement (NRTE): https://video.ibm.com/playlist/673676/video/132640586 , https://video.ibm.com/recorded/132640554 and also https://video.ibm.com/channel/8PCFNQLTGfS
I hope this helps.....