Hi Andy,

re:
> Is there a way to make the display of the mesh a bit easier to work with? There are lots of triangles so it looks like
> a big, thick mess of black lines. Perhaps thin and light grey?

MoI is not designed to work with triangle mesh geometry so it might be difficult to use it in this way.

But you might try using Edit > Lock to lock the mesh so it's not selectable and then it will be grey.

If you want thinner lines, try going to Options > General > "Edit .ini file" button and in the moi.ini file set:
UseThinAntiAliasing=y

- Michael