This is a function for specifying the selected Object Center Coordinate as the Origin Point.
This is convenient when drawing footprints and when specifying the Board Outline Center as the Origin Point.

(1) Select a silk or pad. => The following will explain how to set the pad center as the Origin Point.

(2) Right click Select => [Move Origin Point to Center].

(3) The Origin Point will move to the center of the selected object.