In the new patch, which has moved the Fresh Foodstuffs upgrade from the House of Wisdom to the TC, there is no way to change the Fresh Foodstuffs hotkey under “View and Remap Controls” → “Fully Remappable” → “Town Center”.
Also, “Fresh Foodstuffs” is being incorrectly displayed instead of the new “Fertile Crescent” inside “View and Remap Controls” → “Fully Remappable” → “House of Wisdom”.