They have to be added one by one? Also seems only .C3addon are accepted, so all the .FX / behaviours / Plugins previous on C2 not will work , so i can't import any project vecause all them have a lot of that.
Hope in the next updates there is some "Plugin/behaviours/Effects" store.
Also for .FX effects, i normally edit them, the .FX/.XML to add more properties or edit some values to get as i want. So, how i can edit the .FX in C3 ?