Hi Jeff,

> the inferencing(?) system is great.. i feel pretty darn
> comfortable in the 3D viewport alone..

Just watch out, once you get used to the construction line mechanism you'll start to really miss it in other apps! :)

There's a longer description of how they work here:
http://moi3d.com/2.0/docs/moi_command_reference11.htm#constructionlines

There are a lot of functions available within that one mechanism - one key difference from other inferencing systems is that a construction line in MoI is defined by 2 points - the point you start it on and then the point where you release your drag. That doesn't sound like much but it actually allows for a whole lot of functions involving distance, so things like the midpoint and reflected endpoints are available on a construction line which are not possible to get on inference systems that only radiate out rays from a single origin point instead of being connections between 2 points.

- Michael