> I know that when I drag an object I can see if I move parallel to an axis.
> What I need is more to be sure that I can't move off axis.

Hi JTB - in MoI the "Straight Snap" is intended to be a replacement for Ortho, make sure it is highlighted in the bottom bar when you want to do ortho drawing.

It doesn't just show you when you move parallel to an axis - it is a snapping aid that has some gravity to it that helps you to move parallel to an axis.

Just make sure you see the tracking line when you click and you will have the same result as Ortho.

You can increase the snapping strength if you want, this will make your point "stick" to that line a little easier - to do this, move your mouse to the Straight Snap button at the bottom of the screen and click on the little menu arrow that shows up, and choose "Straight snap options".

In the options dialog, set both "Activate distance" and "Keep active distance" to a larger values, maybe something like 20 and 20.

That will increase the gravity of the straight snap so that you will snap on to that line if you are within 20 pixels of it.

- Michael