If you want Foodini to print shapes in a certain order other than the one automatically chosen, you can tell Foodini which shape to print first. This is done by adjusting the position of the shape.

We will use this print as an example:

All the shapes for this dish would normally be assigned position zero, as they are printed on the same level on the surface of the dish. In this example, Foodini defaults to printing the grapes first. 

However, we want Foodini to print the vine decoration first. Keep the vine shape in position 0, and change the grapes to position 1:

 

You can see what position is assigned to each shape by the number in the right hand corner of each shape:

Since Foodini will not print the shapes "on air", the vine will print first, and the grapes will print second - and all shapes will physically print on the same position on top of the dish: position 0.