Auto-increment/sequential number field for Opportunities

We are currently moving from Nutshell CRM to Twenty, and we ran into a gap that feels small on the surface but is very important in day-to-day operations. In our current setup, every new lead/opportunity automatically receives the next sequential number. We use that number as our internal project number everywhere else across the business: quotes, folders, emails, file naming, job tracking, internal communication, and general reference. We are trying to avoid a process where employees manually assign project numbers, as it introduces mistakes, duplicates, skipped numbers, and inconsistent tracking. Not having this functionality natively in Twenty is less than ideal, and we have yet to find a stable workaround. Why this matters For many teams, an opportunity often becomes the start of an internal job, project, or client file. A reliable sequential project number gives the business a shared reference that can be used across CRM, documents, accounting, operations, and product…