Shotgun Markgraf in the EGS version? (Prey (2017))

Good day. In the Steam version, to become the happy owner of the Markgraf Shotgun, according to the guides from the network, in the file - steam_emu.ini, write one instead of zero in the line DLCUnlockall=0. Can you tell me if it's possible to do something similar with the Epic Games version of the game?