The Reset Tools and Viewports dialog is also used to clear Frame transformations. See Create and Manipulate Frames for more information on frames and frame transforms.
To clear frame transformations:
Select the desired frame(s) in the Frame list.
Click the Graphics windows transform icon in the Transformation Control area and select to open the Reset Tools and Viewports dialog.
Perform the desired operation as described below.
Click
.
Frame transformations will only be reset for the current viewport(s). Click in a viewport to select it. Ctrl-click to extend the selection or de-select a selected item.

Click Transformation Control area (for example, Rotate or Translate) for the selected frame(s) in the selected viewport(s).
to clear only the frame transformation component currently selected in theClick
to clear all frame transformations for the selected frame(s) in the selected viewport(s).