Hi,
I can't modify the loot for the HQ.
The "DayRateMultResourceHQM" and "NightRateMultResourceHQM" settings work.
But you can't put a bonus on it.

The "CustomRateMultResourceBonus": {
"hq.metal.ore": "5/8"
for example, does not work.

Any ideas?

This is how it was intended. hq.metal.ore in CustomRateMultResourceBonus is blocked by the plugin and the plugin use DayRateMultResourceHQM and NightRateMultResourceHQM for multiply bonus for HQM.

Yes, it makes sense in reality.
Thank you for your answer.