##file multi rename, regex pattern for commander
Search For : -(\d*)([-.]\w*.\w*)
Replace With : -${1}000${2}
sample, with the above 3 zeros appending on a number after dash(-):
96672-1478.jpg" -> "96672-1478000.jpg"
96672-1478-home.jpg" -> "96672-1478000-home.jpg"
96672-1478-large.jpg" -> "96672-1478000-large.jpg"
96672-1478-medium.jpg" -> "96672-1478000-medium.jpg"
96672-1478-small.jpg" -> "96672-1478000-small.jpg"
96672-1478-thickbox.jpg" -> "96672-1478000-thickbox.jpg"