The shopfloor sub-menu editor is now a 'Shopfloor Sub-Menu' tab inside the startnet editor (it IS a sub-menu of the boot menu), not a separate page - sf-prefixed IDs avoid clashing with the top-level Boot Menu tab. /shopfloor-menu GET + save now redirect back into that tab; standalone shopfloor_menu.html removed. Sidebar 'startnet.cmd' renamed to 'Boot Menu'.