Rename Private channel and use previous name for public channel

I want to add channel on public store.
Currently I have my channel on private store and want to use same name on public store but since same channel name on private and public store is not possible, so i decided to rename private channel and use previous name for public store.

Is it possible or not?

I will update name in manifest file and then will update name on roku developer portal.

Please guide me if I am going wrong!