how to change price

i have a quick question. is there a way to change the price and/or the gameplay effects on in-game items without having to rename it? or is it once you manipulate it in anyway, it now becomes cc? ie...the schmapple fridge costs 14,000 and i would like to add environment score +1...

also, can you put an aura on an item, like inspired?

thanks in advance, ps... i didn't know where else to post this question...