To set a custom size for the panoramic reslice:
Right-click the panoramic reslice and select Property Panel. Alternatively, press [Ctrl+P] or [Cmd+P] on the keyboard.
Click Size.
On the Size tab enter the value for height or use the slider to set the appropriate value.
Note
When in X-ray mode, an additional Thickness field is shown on the Size tab to determine the thickness of the used slices.