Hey @BatYaggy!
Yes it will! This is an option for those files that need to be used only when called upon.
I believe there is an option in the store that will automatically do this, however, you can right click your content folder and click “CleanUp Unreferenced Assets” and it will give you a list of items that are not being referenced. We just want to make sure you want to get rid of something before it’s removed from the project!