Open any list in Odoo — invoices, contacts, purchase orders, tasks — and you see checkboxes for every yes/no field on that model: Paid, Active, Archived, Approved, Blocked. Click a checkbox to filter. Click again to clear. No dropdown menus. No filter panel. The bar appears automatically on list views in Sales, Invoicing, Inventory, Projects, and every other Odoo app. Works with standard boolean fields and custom yes/no fields you added yourself. Your warehouse manager opens 400 stock moves and ticks Urgent to see the 18 that need same-day shipping. Your accountant filters 120 invoices to Paid in one click instead of opening Filters and scrolling. Saves 15 to 30 seconds every time someone needs to segment a list by yes/no criteria. Install takes under two minutes. The checkbox bar shows up automatically wherever you have booleans on a list.