Many of you are probably already aware that while sketching a line in Inventor, you can hold down the ctrl key to turn off the creation of constraints such as horizontal, vertical, perpendicular and tangent. This is a great little trick when you are in a complex sketch and don't want constraints to be added to particular line segments.
What some of you might not know is that you can also use the same technique when placing dimensions to turn on or off the edit dimension dialog box on placement. I always turn on the "Edit dimensions when created"? option in Inventor although there are times that I want to add several dimensions quickly and don't necessarily want the Edit Dimension dialog to keep popping up. If you hold down the ctrl key when placing a dimension it will disable the edit box until you let up on the ctrl key.
You can also use the same technique when projecting edges from one part to another. The default in Inventor is to make cross part projections adaptive although there are times when you may want to project edges and turn off the adaptivity. When projecting edges from one part to another, you can simply hold down the ctrl key to toggle adaptivety on/off depending on your setting in the assembly tab under application options.