Resources you create can be flagged as reusable or not. A not reusable resource cannot be referenced by projects for leveraging.
Project memory consolidation
If you want to define automatic consolidation in the system, you can define when you want to have your segments stored in your master TM.
Include translation memories in Global Search
By default, all linguistic resources available in the system are added to the Global Search feature. You can actually make this decision for each type of resource: