Deletion in the Binder of Document Templates, Pictures, Audio files, etc.

Could somebody please help me:

Can documents in the Templates folder be deleted by clicking on “Move to Trash” or do I have to export them to the computer first and then delete when I want them completely gone from Scrivener? Or in other words: Is a file only removed from the Binder list or from Scrivener when I “Move to Trash” a document template, audio file, image file, etc. in the binder? I’m running Scrivener Windows Beta .14.

Many thanks for your help.