in proof of stake the minign is done with the amount of coins you have, in your wallet, the more coins the more chance to solve pos block, it has usually a minimum age and a maximum age for minting, the transictino you are talking about it's probably in the code, where they set a last pow block and the pos start from there, you need some programming skill for this
I did try to clone peershares and also I cloned it successfully. But it after completion of proof of work block it did not start with proof of stack even though having balance in my wallet. Can share guide of peercoin and how to clone it? if you have it.
