Quite simple idea. Basically dividing the cargo space into the “loot” and “private” areas. As one is filled the capacity of the other is reduced. The point is for peeps that do missions or other such activities and have their module, ammo, MTU, etc stash that always has to be divided from the loot received. Or like me who flys Amarr battleships and start dividing up stacks of crystals.
By doing so hopefully will save a little time with such activities.