Free Javascript for Illustrator: RenamePlus.jsx for font designers
Rename objects like 0, 1, … 9 with this script to (0).liga, (1).liga, … (9).liga with the new name “($).liga”, where “$” stands for the old name. The guide lines baseline, ascender, desender, capheight and xheight keep the names.
Get it for free: https://www.behance.net/gallery/127731937/Javascript-for-Illustrator-RenamePlusjsx