Duplicate flow with Slice

Is there somebody who can explain me how to duplicate a flow and refind the slices in the new one.
Sometimes I duplicate a flow and it keeps the slice of the first (what I want) and sometimes there is no slice?!!
I want to duplicate the flow to keep the same dimension of the slice but change some notes to create like flascrads with allways the exact same dimension
BEst regards

Unfortunately the slices are completely independent from the flows themselves. Your best bet will be to save the whole project under a new name, then modify the notes in place, then export the slices from there.