Also, at this stage you can only add reward traits to a sim, not main ones. One of the things that disappointed me when I found about the Sims 4 traits was that even adults could only have three main traits (not counting reward traits).I thought this was a bit unrealistic as actual adults have many more than three main traits. Mac Version 1.).It is base game compatible.I’ve also added a second mod, which makes the add trait option available for the normal menu.It should make using the debug cheat mods unnecessary.It’s still in testing mode, though, so there may be bugs.
Note: I’ve updated the mod for the latest patch of April 21st, 2016(Version 1.