When we deploy an Application from DEV to QA , it would be nice to be able to "say" that one or several of the modules are never to be deployed to QA/PRD.
Sometimes we have some modules just for testing or for "demo"/"sample" and we never want to send them to QA because it will never get used.
The same when we install some component from the Forge that has a Demo/Sample module but we want to keep it in DEV but not send it to QA/PRD.
For now it's all or nothing in Lifetime.