Test data
In Data → Test data, import CSV, TSV or JSON into named rundowns. Step through rows without
changing field defaults, run Check all to inspect text overflow and field limits, or play a
rundown through the real preview's Take, updates and Out. Test rundowns are saved with editable
source but do not appear in exported graphics or operator data schemas. MCP authoring uses
set_test_rundowns with field IDs for these authoring-only rows.