Eleven Labs’ new V3 voices are now available in Speechless! Use the AI prompt window in Speechless to rewrite the actual line with tags [basically any words within brackets] or ... for pauses, CAPITALS for louder speech, etc. Experiment, but remember V3 is only in Alpha, so things can change, and you may experience problems or less good results from time to time, but in general, they work pretty well already.

PS V3 does not yet support Speech to Speech. If needed, use the V2 version of your character.