Ok, I should have elaborated on the context in the first place, sry...
I use Dataiku for ETL projects (ERP migration). I have developed a connector who does all the heavy lifting to the target instance. Now one project in dataiku is one migration project in real life.
Let's say I have tables A, B & C to upload to the target instance with receipte compute_A, compute_B & compute_C, then I only want to set the connection parameters (url, token, etc) once and that every recipe can access those instance parameters.
When everything is OK, I would just switch the staging parameters for production parameters in one single place.