Screenshot of the Row Security panel inside Model Builder. Full-app layout 1440x900px. Toolbelt on the left with the Row Security icon highlighted. Header: model name "retail_demo". Body shows a rules table with four columns (Name, Dimension, Type, Enabled, Roles) and four rows: (1) "EMEA manager scope" · region.region_code · role_predicate · Enabled · roles [region_manager_emea]; (2) "NA manager scope" · region.region_code · role_predicate · Enabled · roles [region_manager_na]; (3) "Account-manager assignments" · customer.account_manager_id · user_mapping · Enabled · "(per user)"; (4) "Self-service view" · user.user_id · role_predicate · Disabled (grey). Above the table: "+ New Rule" button, a "Simulate as user…" button, and a rule-count summary "4 rules · 3 enabled". Below the table: a compact "Protected dimensions" chip row — "region.region_code (2 rules)", "customer.account_manager_id (1 rule)", "user.user_id (1 rule)" — each chip coloured green. Dimensions: 1440x900px. Purpose: orient the modeller to the whole rule set at a glance, and expose what's protected.