How does “Doors, never copies” work on the Set up Accounts page?

The financial year, P&L mapping, the management pack, the bank file and paying account, the pay day and remittance steps render the component their own tab renders. Payment run approval is edited on Settings → Payment approval only, so its step shows the read-only card that links there. The Xero connection, companies and entities, Company Structure, GL Exclusions and the HMRC dues calendar are doors to the page that owns them. Where: Set up Accounts (/accounts/setup).