GPT custom waveform configuration through code

Hi Renesas,

I configured my GPT timer with a custom waveform at the beginning like GTIOA initial output level HIGH and GTIOB initial output level LOW. 

Since I am controlling start and stop base of my situation, so I would like to change this initial levels for different custom waveform.

Can you advise how can change this configuration through the code instead?

Such as how to set them both initial LOW, both initial HIGH, GTIOA as LOW and GTIOB as HIGH through the code during the runtime.