I am a teacher who teach student Solidworks. To check the plagiarism, I used to use the "feature properties" to  confirm the creator of the commands in a part file. Recently, I notice the student understand how I check the file, they save others work as igs files and imported with solidworks. In this way, all the file step by step are in their names. I need find solution to avoid this kind of problems. Can anyone help me for the following problems?

1. Is there any way to check a commend or a file in a solidworks part is created by human or created by auto-recognize feature function?

2. Is there any way to check the creator of a solidwork drawing?

Thanks