Command to Spawn Tamed: Cheat GMSummon "RideableOtter_Character_BP_C" 150
Add to Spawners (Game.ini): ConfigAddNPCSpawnEntriesContainer=(NPCSpawnEntriesContainerClassString="DinoSpawnEntriesBeach_C",NPCSpawnEntries=((AnEntryName="RideableOtter",EntryWeight=0.1,NPCsToSpawn=("/RideableOtter/RideableOtter/RideableOtter_Character_BP.RideableOtter_Character_BP_C"))),NPCSpawnLimits=((NPCClass="/RideableOtter/RideableOtter/RideableOtter_Character_BP.RideableOtter_Character_BP_C",MaxPercentageOfDesiredNumToAllow=0.1)))