SketchUp 2020 - Update 2: Feature 1
Linear inference toggles for the Line tool in SketchUp
SketchUp inferencing comes in all shapes and sizes. One of the most distinct is the linear inferencing that allows you to snap or lock to the red, green, and blue axes. Linear inferencing makes SketchUp work, but it can also get in the way. For instance, if you are working with very small spaces or tracing images, we’ve heard from you that it would be helpful for inferencing to get out of the way.
To address this, the Line tool now features a modifier key [(ALT) on Win and (CMD) on Mac] to toggle linear inferencing on and off, so you can draw edges without being snapped to an inference. You can turn off all inferences, or leave only parallel and perpendicular inferencing on. Of course, you can still jump to a specific inference — red, green, blue, or magenta — using the arrow keys.