tracking user/viewer activity

Hi --

I upgraded from Individual to Starter in order to track user/viewer history, per the advice of Support about 10 days ago. Specifically, certain files and folders have been deleted from my Box and I need to determine when they have been viewed, accessed or deleted.

Unfortunately, I cannot figure out how to do this and my initial questions remain:

I would like to know how to see lifetime file activity via Content Insights, to know whenever a file has been viewed or in any way accessed.

*Can I do this with my account?

*If I share a file with someone who does not have a Box account, can I still see when they have accessed the folder or file?

*If I am not the owner of the file or folder, can I see when the owner has removed, deleted, or unlinked a file?

Thanks in advance for your response --
Melissa