Who can tell me how to start staking this coin? Do I only have to open up the wallet?
Coins need to mature in youre wallet for 30 days , then they take 30 days to stake , the swap will be March 1st.
so there is time but maybe its not worth the trouble if you are planning to swap.
If you do wanne stake download wallet from paccoin.net it has most of the blockchain already.
send youre coins to wallet ID wait for 30 days , if you locked wallet (recommended) unlock it in console with walletpassphrase command.
and then keep running wallet 24/7 for the next 2 months until the swap.