How enter enroutewinds?

Hoi guys...After several flights now with the lovely PMDG MD11 i want to go deeper with programming the FMS especially the wind data. after entering the wind in the F-PLN page 2 for each waypoint, the FMS shows only the winds from the upper, lets say i´m flyin currently on FL320 but have to climb FL340, so the FMS shows only the inserted data from FL340. is there a "primary sytem advice" needed or something that? what do i wrong or maybe its all correct? many thanks in advance.