Mixer Wagon Feed Switcher

This script allows empty mixer wagons to switch between the original Total Mixed Ration (TMR) recipe and additional XML-based custom feed recipes such as Pig Feed or TMR variants.
Default hotkey: Left Ctrl + M to switch recipe. The mixing ratio display uses the game's own vehicle HUD panel, positioned and scaled the same way as any other vehicle info there.
Requires an empty vehicle to switch recipes.