Generative Electrical 3D Design and Electrical 3D Parts Design

Dear all, where can I fine a user group for the Apps in 3DExperience. I have some questions on the topic. Around the contextual Link and how to best manage the links. Every time the links go wrong. It's a challenge to put it write. Do we have a documentation that explains the links and the best approach to structure electrical assemblies for optimum Links management? Thanks.