Incredible Adventures of Van Helsing Cheats
So here's what you do. Locate your Van Helsing save folder (C:\Users\(Username here)\Documents\NeocoreGames\Van Helsing\SaveGame\42139229)
Make a copy off your main player you want to clone item's from, Load your character then place all your HP, Mana essence and what ever else into the storage chest, exit the game and ALT+TAB out. Replace the save game with the copy you made and repeat the process until you have a stock pile off items.
Here is a save game i made that has HP, Mana and +20 and +24 essence capacity essences. It's just the standard hunter so no DLC required to use it.