How to properly "transport" LBP 1 and 2 dlc to 3?

I just installed the game little big planet 3 and installed the pkg of the costumes from the first and second game on rpcs3 but they don't show anywhere in the game? Am i doing something wrong or is it just not possible on rpcs3?

DLC files also require .rap files to work in RPCS3:

https://wiki.rpcs3.net/index.php?title=H...SN_content

DLC files also require .rap files to work in RPCS3:

https://wiki.rpcs3.net/index.php?title=H...SN_content

Yup i know that, just for trying i downloaded the pkg for the metal gear solid 4 costume (that is for the lbp 1 game) and it's rap, installed them both but the costume just isn't in lbp 3 :/ Unless i need to do something else in-game to get it