Opens a picker to assign the currently-loaded manifest to one or more print_parts.
Use Load from Connect in the header to test against a real part PDF.
Overlay Zones
Auto-zone rules (pattern → source)
Pattern uses * as wildcard. Match is case-insensitive. Lines that match no rule are skipped (no zone).
Zone Editor
Which pages get this zone: first, last, all,
a single page (2), or a list/ranges (1,3-5) — page numbers are
1-based. Blank = all pages.