Available commands:
Set both Player and Dino weight multipliers to 10% of total (90% reduction):
cheat ScriptCommand WeightReduction 0.1
Set Player weight multipliers to 10% of total (90% reduction):
cheat ScriptCommand WeightReduction Player 0.1
Set Dino weight multipliers to 10% of total (90% reduction):
cheat ScriptCommand WeightReduction Dino 0.1