I just picked up MOI and overall I love it. There is one issue that is driving me nuts and hasn't been addressed in any of the English language tutorials I have watched/read, or the online manual (selection section).

When I select an object with the left mouse and move it with grid snap turned on, my selection starts at the point on the object where the mouse is positioned. This ruins the point of grid-snap! How do I select an object from it's center with grid-snap turned on (like, say, in Rhino).

Also, can I move objects using the mouse arrow keys? This is a nice feature to have...

Thanks,
-FDP