I don't know how many users of PEV's Trainz Mesh Viewer know this, but when you have an IM file open in the mesh viewer you can right-click on the screen and get some additional information about the mesh, PLUS you have the ability to create a screenshot (thumbnail) right from the mesh viewer picture:

This really helps me a lot.
Cheers,
Dave Snow

This really helps me a lot.
Cheers,
Dave Snow