I just installed the Mod Constructor by Zerbu and I've made my very first trait but it's centered around my sim being sad and when I click on it in CAS, my sims animation that they do is the same as if I had clicked on the Active trait. Is there a way to choose what animation your sim does in CAS when you're creating your trait and if so, how do I do it? Thank you so much in advance for your help !! :D

...btw, sorry if this has already been asked/answered in another thread, I couldn't find an answer to this anywhere. :/

Sorry for reviving this thread but i can help you out

Just download Sims 4 Studio open the package file and search for this line in your sim data main trait file:

And change active to any other trait in your case Gloomy.

I don't know if OP will see it, but anyway, thank you for your reply!