F-OF-MPC results originate in the Nastran Grid Point Force datablock and are stored in Femap output vectors 151-158 ( 152..T1 MultiPoint Force ).
Use List-Output-Results to Data Table -> Take defaults -> Then choose vectors 151- 158.
Thanks for your reply, in the f06 file , under "Grid Point Force Balance", I see all the values for "F-OF-MPC",... but in femap (List-Output-Results to Data Table), I don't see these vectors (151-158)?!
The output vector numbers are listed "1-58, 3000-3785, 6043-6044, 7020-7433,...", non of them called as "MultiPoint Forces"?!
Grid Point Force output is not supported from the f06 file. You will need to set the results destination in the Analysis set to PostProcess (op2) or the XDB file using the Nastran Output request dialog box.