There was a question: I have a question for the future actually, let say I have 3 masternode running and one day I decide to stop masternode, how do I stop it properly so that I can withdraw or exchange all my Bitcore BTX coin?
And the answer: Your coins are always un your wallet. The easiest way to unblock them is change masternode.config file.
Just add a # in front if the masternode’s data you want to stop. Save the file, close the wallet and open It again. That is all