(Gif by mint1ii (https://www.deviantart.com/mint1ii))
Once you're in the name repair tab, copy paste this list into it:
"Position", "全ての親"
"Root", "上半身"
"Hip", "下半身"
"Thigh_L", "左足"
"Knee_L", "左ひざ"
"Ankle_L", "左足首"
"Toe_L", "左つま先"
"Thigh_R", "右足"
"Knee_R", "右ひざ"
"Ankle_R", "右足首"
"Toe_R", "右つま先"
"Waist", "上半身"
"Chest", "上半身2"
"Shoulder_L", "左肩"
"Arm_L", "左腕"