Smiling mouth x Serious mouth in one audio

I have an audio and want to put it and smiling mouths after serious mouths in the same layer . How can I use " Auto LipSync " in this case ?

i’ve thought about this before and don’t think there’s a way around having the serious mouth shapes and smiling mouth shapes on separate layers.

that’s how i would do it, then i would have two layers of the audio file- one of them being the “serious dialogue” (where i would delete the frames containing non-serious audio) and the other would be the “smiling dialogue” (and would delete the frames containing non-smiling audio)

then just auto sync the specific audio to the corresponding mouth layer.

i would love to know if there’s a better way!