"Students" - is a code name.
Recipe: deal has a custom field as "Bind To CRM Elements -> Contact" and checked "Multiple". You can made select from linked fields of "Contact". The table of contacts has similar features as the products table.
There is only one "but": the app should "recognise" this table for contacts, in this case you need to put CSS-class "contact_table" into table header, it can be done by HTML-source.