For the problem of flying wing VTOL

To calibrate the sensor when the flying wing is set to PITCH - 90 is also my good after calibration VTOL is normal, but after switching the elevator is reverse, where the need is not set? The original is the aileron counter, I set up a reverse in the settings, but do not know how to set the lift.

The reverse of the elevating rudder and aileron will actually be reversed on the remote control, but if the remote control is reversed, your vertical lift will also be affected.You are looking for the parameter of RC4_REV (FLOAT) in the parameters of the aileron, hoping to help you.
I have one more question to ask you, how is your vertical elevator calibrated?