If you need to move a object down that doesn't allow you to move it down say like a fountain or mirror what do you do. You put it in the basement and move it up instead.
Say you put a fountain in your yard but you wish it was shorter, like this fountain
Use the basement tool to make a wall as a reference to go by, in this case I put the wall in the center of the fountain.
Now grab the fountain and move it down to the basement holding it in the center of the wall so it will be placed where you want it at.
Now use ctrl-9 to move the fountain up. In this case you can use the wall for a reference. The top of the wall is ground level.
Now when you go back up to ground level the fountain is where you wanted it at but it seems shorter sense part of it is in the ground.
You can now go back down and delete the wall in the basement you had for a reference.
Items you want to place higher are a little tougher and takes a little trail and error to get just right.
Like this mirror above the dresser. You want this mirror on top of the dresser but you can't move mirror down farther than the starting height but you can move it up.
So it's back to the basement again. Make a reference wall in the basement under the wall with the mirror then grab the mirror and page down to the basement.
Now for the trail and error part. Sense the mirror is going above the ground you can't use the top of the wall for a reference sense the mirror will be above the wall. Use ctrl-9 to move the mirror up counting how many times you moved it. Click to place the mirror and go back up to see where it is. If it's to high or to low you have to try it again adjusting your count.
In this case to get the mirror on top of the dresser I move it up 25 times. If the wall had been on a foundation I would have to move it up more to allow for the height of the foundation
Now to get rid of the wall in the basement you can't just delete it this time sense the game sees the mirror as being on that wall. If you just select the wall the delete it, it will also delete the mirror. But if you select the wall and use the move arrows to collapse the wall it will get rid of the wall and leave the mirror in place.
This can be used for some interesting looks. If your making a spooky house then put a doll in the basement and make it life size then move it up so just the head is showing at ground level. Then you have a severed head in your yard.