How does one make  a particular shaped pattern of terrain using the terrain editor, for example, say you're making cookies and you roll out a sheet of dough and then you use a cookie cutter in the shape of a heart or what have you, after which you pull up the excess dough and you are left with only just the shapes you just cut out.
I tried  to get a particular shape for a terrain in Carrara but the only way that I could was to import one by way of using photoshop and Vue's terrain editor (they have a clip function). Any help woul be greatly appreciated.