How to access NAS drive documents within Devonthink?

I tried to search but did not find any thread on this. Let me know if I should check any particular thread which covered this area.

I have DEVONthink database setup on my MacBook and also have files in NAS storage which I would like to access within DEVONthink for search purpose. Is there a way to access directly from NAS storage within DEVONthink without moving those files to local MacBook drive?

Can your MBA ‘see’ the NAS files? What happens if you try to ‘Index’ them inside DTPO?