Coordinates of an object in a catproduct

Hello
I want to know how I can do the location or know the X, Y and Z location (functional marker?) of a part (catpart) that is in a catproduct...
Thank you in advance

Hello, if each part has its marker, you can use the measuring tool (Caliper).
Each selection of a coordinate system will give you these XYZ coordinates in the assembly.

Maybe I expressed my request badly... I have several subsets (with catparts) which are in a main set (3d tree) the quantity of parts are numerous so I need to extract the XYZ coordinates of each part of the tree taking into account that the main coordinate system is on the main set (extraction on an Excel file for example) ... Even on specific areas of the rooms, e.g. imagine a table that has a cup placed on one place of the table knowing that the table has the coordinates 0 0 0 on one of the 4 corners so what are the XYZ coordinates of the cup (edge of the cup... Etc) with respect to the coordinate system as the principal?