Hi there, as far as I understand, following keys are used to move diagonal:
Home - moving up left
PageUp - moving up right
PageDown - moving down right
End - moving down left

Now, on some (compacted) keyboards these keys are scattered all over the keyboard. Does DOSBox offer an option to, for example, turn four letter keys (for example: i, o, l, k) into the four keys listed above. This would make it so much easier moving the ships and the folks around the map.

Cheers,