Clipping in creo elements/pro and in creo 1 is not very useful. The steps, the section plane is moved by using arrow buttons are too big. Sensitivity cannot be set. Sectioning is even done outside of geometry which is nonsense (e.g. sectioning is only done in the range between 40% and 60%).
PTC should improve clipping function in this way:
Sectioning should be done only where geometry can be cut.
The stepsize should be to configure in UI (sensitivity).
Interactive move of section plane should be possible like it is in creo view.
Functionality of clipping in creo should work like in creo view or other CAD and viewer software.