how do i move objects up and down in sims 2, like put objects on shelves that are not functional shelves, i dont mean paintings or shelves. just like in sims 3 and 4 where you can put objects anywhere on a non functional furniture

I think you are after an OMPS (One More Position Slot) http://modthesims.info/m/2134630

There is a WCIF board for these type of questions.

Thank you so so much, thats very helpful x

If you have Apartment Life, some objects can be shifted up and down. Ingame, mostly wall items and pictures have this function by default. You can use the [ and ] keys (on English/American keyboards) to shift them up and down if an object has the function enabled (or to test if it has).

You can enable this function for a lot of other objects, though. There's a code that needs to be added to the individual mesh file. Tutorial, if you're interested: http://www.modthesims.info/showthread.php?p=2122620.

Personally, I like to enable it for most small deco objects I make. It saves a lot of OMSP placing.

Silentlucidity's shiftable OMSPs are amazing, and you don't really need any others unless you want a few static ones to make it easier to stack things on tables and shelves (less shifting up/down). There are two sets, both in Jo's link above.