Change construction options that affect production and pricing

Adjust how carcass panels extend, connect and rail so the construction tab changes carry through to production outputs and pricing.

1. Options include extending carcass panels using extension parameters.

   ✓ Comprobado en el producto el 10 de octubre de 2026

2. Options include customizing how panels connect (e.g. top panel sandwiched between side panels or sitting on top).

   ✓ Comprobado en el producto el 10 de octubre de 2026

3. Default construction uses half top rails instead of a full top panel, changeable via railing options.

   ✓ Comprobado en el producto el 10 de octubre de 2026