From my recent experience with Dead Air mod when you find Lab Documents or generally important documents, they can be sold to various traders in order to upgrade their inventory variety to a more interesting one. I don't know if the same applies to other Stalker mods like this one but i would like to know too as i am planning to play AREA in the future again.My saluts to the devs.
V0RtaL
joined
''To_the_North''