If you open the schematic symbol or PCB footprint in the symbol or footprint editor you will see that the origin (0,0, XY co-ordinates) of the symbol or footprint is marked by the white crosshairs. Parts in My Parts, Favorite Parts, the EasyEDA Libs and General Packages can be opened by double clicking on them. Parts found using **Shift+F** can be opened for editing by the edit button next to each part. You can see the XY location of a part when placed in a schematic or PCB by hovering the mouse over the origin point of the part.

Do you mean, you need a {x:??, y:??} for parts?