Re: TATTOO Issue

for sims in your library start a new game just bring them into the CAS add the tattoo then save again to your library

you'll need to use a cheat for sims already made in game

see this http://sims4.crinrict.com/en/2014/09/change-sims-name-and-traits/

i tried this myself and i was able to change/add/remove tattoo's