Tableau's Hyper file structure can store multiple tables and the published Hyper API exposes a SQL interface. Therefore instead of supporting the standard file-based interface (like text, Excel, etc.) for connecting to Hyper files how about supporting the database server interface used for MS SQL Server, PostgreSQL, etc. so we can select the schema, tables, fields, or even write SQL?
Two related ideas:
Supporting alternative schema & table names: https://community.alteryx.com/t5/Alteryx-Designer-Ideas/Input-tool-Support-more-than-Extract-Extract...
Supporting multiple table extracts: https://community.alteryx.com/t5/Alteryx-Designer-Ideas/Input-tool-support-multiple-table-extracts-f... to support multiple table extracts for the Input
Jonathan