[FEATURE REQUEST] Shared Content

I’m just copying over 5 GIG of data to a new project and wondering, if it would be possible to manage content outside the active project.
This would allow to have - during development - a single repository of all assets we might or might not use later on.

Another use-case: You want to test a single functionality and create specific projects for use-case testing.
Currently you have to copy over the content to each project instead of having a slim, minimal project.

When we developer also preserve old engine versions, the amount of data (which also is backuped) is incredible.