Steven, thank you for your reply. Now it is more clear but I still can not understand the order of manual. When I use factoidpapermill I generated private and public keys. Then I withdraw Factom to generated address. Then manual says to backup wallet file which (!) is not yet created with ./fctwallet (and not imported my private key). So I believe order must be: run ./fctwallet, import private key and only then backup my factoid_wallet_bolt.db. Is this correct or I missed something?