well we obviously mean doors and chests. in BG you would get into a room full of barrels, crates, chests and so on and you had to slowly sweep the screen with the mouse to see which of them you could use or not. in BG 2 you pressed tab ad you could see that from the 50 barrels, 20 crates and 8 chests, only 3, 4 and 5 were of any use and the rest were decorations. traps, hidden doors and the like you had to spot first and then they would highlight
Right--I just meant finding more stuff with a seach/spot ability. So a low search might only yield 3 lootable items, while a higher search would yield those 3 plus some smaller/hidden things you might not notice otherwise.