I actualize, the ultimate version (10077) in my calculator and Virtual, Emulator, and without, any problem.
You can see, from, the User Manual ... Chapter 9.
Tap where you want the point to be and press Keyboard shortcut. Tap the object where you want the new point to be and press .
See Plot view: Buttons and keys. If you select a point that has been placed on an object and then move that point, the point will be constrained to the object on which it was placed. For example, a point placed on a circle will remain on that circle regardless, of how you move, the point.
Kind Regards !. Have a nice day !. @Maké (Technical Advisor Premium - HP Program Top Contributor). Provost in HP Spanish Public Forum ... https://h30467.www3.hp.com/