16 List optimizer GPS → Block Sorter (Hardened + Fast)GPS → Block Sorter Load Map Confirm Split Cancel Split Re-assign GPS to Blocks Export BlocksAdd pins Block 1 starting pointGenerate list optimizes blocks twice: first to find each next block's first GPS, then again using that first GPS as the previous block's ending anchor. Heavy assignment and routing work runs in Web Workers when available. IdleGenerate list Copy the list