guys I could not find the process for this, I know how to clone bitcoin and make a new altcoin.

but using the bitcoin chain 1:1 and create another coin and chain I don't know.

how the users will receive 1 coin? if the blockchain will change?

the users will keep using the old wallet file from bitcoin ?

questions like that I cant understand.

anywhere I can search about it?

the same process has be done for litecoin and ethereum.

thank you.