Since the PS4 version of PES 2015 did not allow full image importing (that feature started with PES 2016), this post clarifies the reality of "Option Files" for that specific year.
In previous generations, such as the PS3, users could easily transfer large folders containing real team kits, emblems, and player data via USB. However, PES 2015 on the PS4 initially lacked the ability to import image folders.
: You are stuck with the generic shapes and fonts provided in the game's internal editor. Tedious Installation