Konami have dropped it. PES 2017 which I have, doesn't have it. So it must have stopped after 2016 version. They've now replaced it with "Paste strip" or something like that. Problem is, it only imports the COMPLETE KIT. So you'll need to use an option file, or create your own kit with PESMASTER (
http://www.pesmaster.com/pes-2017/kit-creator/) and add sponsors e.t.c. to it, then save it, import the edited kit into the game, and use the "Paste strip" option.