I want to move Z axis simultaneously with U and V but Mits wont do that. No, i dont youse 3d tracking, whats that?

Mastercam recognize those planes ( Z height ) but when i transfer G-code to wire edm, machine do not move z axis, but instead stay on the last known z height (manually inserted or moved z value).

Greetings. Im new to Mastercam and edm cutting so i have few questions. I have problem with taper heights or should i say z axis height. When programing manually i can set z value but when i use mastercam to generate gcode z height or taper heights dont change. What im doing wrong ?! (using Mastercam2017/Mitsubishi MV1200S) Tnx for reply.