1.18 Version's lack of documentation

[neos0]

I'd like to disable the feature that drops unfamiliar items from the inventory. In older version this could be done in the config file, but the 1.18 version doesn't even generate a config file anymore. Is there a way to disable it from scripts?

[Darkhax]

You can find the full documentation for this mod in the example scripts. You're looking for this part.

// By default items are restricted to the greatest degree possible however you
// may want to ease certain parts of the restriction. For example you may want
// to prevent a player from using an item but allow them to keep it in their 
// inventory. This can be done by setting preventInventory to false.
val two = ItemStages.restrict(<item:minecraft:diamond>, "adv_two");
two.preventInventory(false);   // Allows item to be kept in inventories.
two.preventAttacking(false);   // Allows item to be used as a weapon.
two.preventPickup(false);      // Allows item to be picked up.
two.preventUsing(false);       // Allows item to be used (left/right click).
two.setHiddenInJEI(false);     // Allows item to be visible in JEI.