Get active Customized Actions

[Dekakaruk]

I'm trying to get a list of all active collectibles. Till now it was done by calling GetActiveCollectibleByType on every known CollectibleCategoryType constant. But now I'd like to add a support for customized actions, which seem not to use this system. Already tried to blindly put PlayerFxWhileHarvestingType as argument or using other functions like GetCollectiblePlayerFxWhileHarvestingType, which of course didn't work. How do I then check which Actions are active?