Modifier Change Improvement Appeal in A Civ.

[Wujinsg]

I have tried to implement a trait modifier to a unique civ and make mines' appeal -3 instead of -1. I only find that there is a ModifierType named: MODIFIER_PLAYER_CITIES_ADJUST_FEATURE_APPEAL_MODIFIER which is used in Brazil that changes the feature's appeal (With modifier arguments amount and featuretype). Sadly there is not a modifier that changes improvements' appeal. How do I change improvements' appeal in a certain civ or leader?

Any ideas and suggestions are greatly appreciated.

 

[Wujinsg]

I also tried this but this changes all civs' mine to -3 appeal.

UPDATE Improvements
SET Appeal = -3
WHERE ImprovementType = 'IMPROVEMENT_MINE';

Any method to turn this command one civ (or leader) only?

 

[TLC]

"REQUIREMENT_PLAYER_TYPE_MATCHES" should help. Beside of changing the property of mine itself, PERHAPS "REQUIREMENT_PLOT_IMPROVEMENT_TYPE_MATCHES" + "EFFECT_ADJUST_FEATURE_APPEAL_MODIFIER" works.