If you'd like to change the size of something, but keep it intact, so to speak, so it's the same just bigger, make sure that X, Y, and Z are all the same number for that specific bone.
BONE NAMES
lfHip
lfThigh
lfCalf
lfFoot
lfToes
xTipBone86
rtHip
rtThigh
rtCalf
rtFoot
rtToes
xTipBone38
Spine01
Spine02
Spine03
Spine04
lfClavicle
lfShoulder
lfbicep
lfElbow
lfWrist
lfHand
lfmetaCarpal01
lfThumb01d
lfThumb02
lfThumb03
xTipBone88
lfmetaCarpal02
lfFingerIndex01
lfFingerIndex02
lfFingerIndex03
xTipBone89
lfmetaCarpal03
lfFingerMiddle01
lfFingerMiddle02
lfFingerMiddle03
xTipBone87
lfmetaCarpal04
lfFingerRing01
lfFingerRing02
lfFingerRing03
xTipBone90
lfmetaCarpal05
lfFingerPinky01
lfFingerPinky02
lfFingerPinky03
xTiprtFingerne83
Neck01
Neck02
Neck03
Neck04
Head
xTipBone33
rtClavicle
rtShoulder
rtbicep
rtElbow
rtWrist
rtHand
rtmetaCarpal01
rtThumb01
rtThumb02
rtThumb03
xTipBone66
rtmetaCarpal02
rtFingerIndex01
rtFingerIndex02
rtFingerIndex03
xTipBone70
rtmetaCarpal03
rtFingerMiddle01
rtFingerMiddle02
rtFingerMiddle03
xTipBone74
rtmetaCarpal04
rtFingerRing01
rtFingerRing02
rtFingerRing03
xTipBone78
rtmetaCarpal05
rtFingerPinky01
rtFingerPinky02
rtFingerPinky03
xTiprtFingerne82
zhead