It's a QGridLayout() the numbers refer to positioning on the grid. I think if we made it enums it would be more confusing because the grid could  grow or shrink (also harder to maintain because the words would have to change as the grid got bigger).

One thing I've seen other projects do though is docstring the layout as it should be so that there's a visual ascii representation of what it looks like, but that may be a bit of work too.