Input System UI way too complicated

Hello
i am trying to figure out how can i call the followign events with the new Input System:

IPointerClickHandler, IPointerEnterHandler etc…

it seams i need the InputSystemUIInputModule component (who came up with these names LOL)

anyway i have figured out how i can call the PointerEnter & Exit Handler,
i have add the “Position Mouse” in the new Input Window and assigned it on the Point field in the
InputSystemUIInputModule … i think that works
but how can i call the IPointerClickHandler > OnPointerClick function ?
i have setup an Button and also assigned this to the LeftClick field but nothing seems to work

best regards

nevermind got i to work