Similar to other virtual dataroom software solutions, Box.com should be able to autoindex files. This is a very basic capability that other solutions like Egnyte, Firmex and Sharefile are able to do. The reason this is important is so that you can direct an external party to look for a file at a specific index/location such as 1.1.5.6.4. See below for FAQ with document indexing for Egnyte and Sharefile.

https://helpdesk.egnyte.com/hc/en-us/articles/20227299793037-Egnyte-Document-Room-FAQs#:~:text=In%20Egnyte%20Document%20Room%20files,from%20the%20Document%20Room%20Portal.

https://docs.sharefile.com/en-us/sharefile/sharefile-vdr/data-room-index