This is a cheat for stacking and putting wall items anywhere around your restaurant! However, the wall cheat does not work in your outdoor garden.
Step 1: Select two items you would like to stack out and put them into your restaurant.
Step 2: Then, drag the item you want to be on top and put it in the grass (the part with trees). Secondly, put it on top the other item. Thirdly, drag it to the check mark. Hold the dragging!
Step 3: Now click the check mark.
Step 4: Refresh Restaurant City.
Step 5: Now you will see the two items are stacked.
Wall item cheat:
Step 1: Take the wall item.
Step 2: Drag it on the place were you want it to be.
Step 3: Hold the dragging! Now press the Control (Ctrl) button.