That option can be configured in game.ini.
Command Exaple:
ConfigOverrideSupplyCrateItems=(SupplyCrateClassString="DinoDropInventoryComponent_C(NEED TO CHANGE THIS)",MinItemSets=2.000000,MaxItemSets=2.000000,NumItemSetsPower=1.000000,bSetsRandomWithoutReplacement=True,ItemSets=((MinNumItems=1.000000,MaxNumItems=1.000000,NumItemsPower=1.000000,SetWeight=1.000000,bItemsRandomWithoutReplacement=True,ItemEntries=((EntryWeight=1.000000,MinQuantity=1.000000,MaxQuantity=1.000000,MinQuality=1.000000,MaxQuality=1.000000,bForceBlueprint=False,ChanceToBeBlueprintOverride=0.000000,ItemClassStrings=("ITEM YOU WILL GIVE_C"),ItemsWeights=(1.0))))))