Pre 7.92 users had that option. Now it's all part of the 'default algorithim which supposedly includes address.

The 7.92 Duplicate Tool has an algorithm that's hard-coded and is used by default within the database. User selected duplicate fields are no longer present in version 7.92. SERIOUSLY? You can no longer search for constituents who share the same address, such as alumni still listed at their parent's address. The suggestion from support was to export my database to Excel to find duplicates. ARE YOU KIDDING ME? This is a REALLY BAD UPDATE. Please, please fix this!