Great thanks.

One more thing - am beginning to get my head round the GridModeller and find it easy to use. However, I'm a bit confused about Vue Units and can't find much about them in the Vue documentation.

I have a scene with 2 cubes side by side. 

1. One is a Vue primitive, whose side length is 6m, or 30 Vue units
2. The other is imported from a sketchup file (which contains just a cube). Its side is also 6m, but this translates to 0.381 Vue units.

Can anyone explain this? More importantly, how can I easily use GridModeller with imported objects without having to adjust all the calculated values by (30/0.381) or whatever the ratio is?

I hope there is a way to reliably adjust for this, or perhaps there should be an option to use real object sizes instead, since the precision of the Gridmodeller is one of its selling points, and works really well for Vue primitives.

I use Sketchup a lot for assembling architectural models, so would be great to be able to integrate imported models with this tool.

Thanks
Richard