What is the 2d/3d toggle on the LEVEL for?

[jwilhelm]

The level line has a 2d/3d toggle on it, what does that do? cant find it in the documentation

[beegee]

Its under ' Datum Extents and Visibility "


Select a datum and it is selected in all views in which it is visible. Notice that there is a control titled 3D that displays at the ends of the datum. With the 3D designation, the datum is in model extent mode. This means that if you drag the control to resize the datum extent, it changes the extent of that datum in all other parallel views, provided those datums also have the 3D model extent control
Click the 3D control; it changes to display 2D. The control also changes from an open circle to a filled circle. This means the datum is in view specific mode. If you resize the datum the change occurs in that view only.
Notice that when you drag the filled circle, the open circle remains. This is showing where the model (3D) extent is. If you want to return to that extent, right-click on the datum and click Reset to 3D Extents.

In either 2D or 3D mode, you can show or hide the datum bubble, and you can add a leader to the extent.
NOTE: If you drag a datum extent outside the crop boundary of the view, the control on the extent is always in view-specific (2D) mode. You also cannot propagate its extents to other views.