The Wiki for Case Studies has been updated with the latest upload. Please give it a look if you are interested in structured expressions, back-references, querying the model, metachains, etc. This week's upload is: Case 2. Finding Element Usages as Types.

https://r1132100503382-eu1-3dswym.3dexperience.3ds.com/community/swym:prd:R1132100503382:community:4GJPS8QmTuC4wF8BSLitkw?content=swym:prd:R1132100503382:wikitree:gB91uO9eQMGiS2bKyjoKOg