I need a TDL that plugs into TallyPrime and, the moment I pick a customer in any voucher, instantly displays a compact dashboard with five key insights: • Days taken to clear the current bill • Historical average days that customer needs to pay • Brand-wise bill-to-bill ageing analysis • Current defaulter flag (and if flagged, the voucher must be blocked automatically) • Cumulative sales to date plus the customer’s average transaction value While viewing that pop-up I should be able to filter the figures by date range, customer category or a predefined customer-rating list. All logic, UI elements and blocking behaviour have to run natively inside TallyPrime; no external exe is acceptable. Please deliver the TDL source code, a brief install guide and a short walkthrough so my team can tweak parameters later if needed.