I'm working on customizing the CRM module in Odoo 18 (custom/internal build), and I've been asked to implement column-wise filters—similar to how Excel or DataTables allow filtering directly under each column header.

Specifically, I want to:

• Allow users to filter values inline under each column in the list view (not just using the top search bar).
• Apply filters dynamically as users type/select under the columns.

I know Odoo's standard search view can filter fields globally, but my requirement is to have individual filters below each column, ideally as input/select fields.