Used to select an node as the center of rotation. When toggled on, pressing <Ctrl+Shift> and clicking a node will set that node as the center of rotation.

1. Either:

   On the View ribbon tab, select the Toggle View Rotation Mode tool in the Rotation group.

   or

   On the View ribbon tab, select the Always Fit in Current Window tool in the Rotation group.

   Note: The icon for the Toggle View Rotation Mode is depressed when in this mode (and there is no check on the View > Always Fit in Current Window menu item).

   A message dialog appears to remind you how to next select a center of rotation.

2. Hold down the <Ctrl+Shift> keys and click on a node. A reticle is placed on this node to indicate it is the center of rotation.
3. Either:

   Use the rotate tools found in the Rotate toolbar or the arrow keys to rotate the structure about this node.

   or

   Hold down the right mouse button while dragging the pointer to free rotate the model about this node.

4. Repeat steps 3 and 4 to re-center and rotate the structure.
5. To return the center of rotation to the center of the structural model:

   select the Toggle View Rotation Mode tool

   or

   select the Always Fit in Current Window tool such that a check mark appears

   or

   select the Use Center of the structure as rotational Center option in the Orientation dialog.