Instead of duplicating the "Infantry" or "Tank" branches for 50 different nations, the new maker allows you to design a "Template Tree." You can attach this template to any nation’s file with a single click, saving thousands of lines of code.
The old version required you to manually copy/paste files. The UPD now hooks directly into your Documents/Paradox Interactive/Hearts of Iron IV/mod/ folder. You can set your working mod, and the maker auto-updates the .mod descriptor. hoi4 focus tree maker upd
The UPD fixes the infamous "crash when scrolling 100+ focuses" bug and reduces RAM usage by 40% when loading large trees (like the vanilla German or Soviet trees). Instead of duplicating the "Infantry" or "Tank" branches
"tree_id": "GER_custom",
"focuses": [
"id": "GER_industry_1",
"x": 1, "y": 0,
"prerequisites": [],
"cost": 35,
"rewards": [ "type": "add_construction_slots", "value": 2 ]
]
Double-click the focus → "Localisation" field. Type "Military Buildup". The tool automatically writes the English, French, German, and Spanish loc entries. Double-click the focus → "Localisation" field
The tool no longer forces the user to rely solely on the limited effect dropdowns.