Question about adding separate controls for RGB and White LEDs on the same lamp

[buguniao55555]

I recently purchased a ceiling light, and there are RGB LEDs on the side of the light and White/Yellow light at the front. I can separately control them in tuya app (turn on and off separately, adjust brightness separately). However, I can't figure out a way to separately control them using localtuya. I've looked into the dp data and noticed that it changes DP51 when I adjust RGB, brightness, temperature and on/off.

This screenshot is captured when I only turn on the RGB LEDs. Only DP51 changed.

After decoding using base64, the only difference between the two binary codes is this bit.
I also tried with white light and it will toggle the next bit after the RGB on/off bit.
When adjusting RGB color and temperature of the white light, no other DP except this DP51 changes. So I guess tuya put all controls all in this DP.
Is there any way I can directly send instructions to that DP? I'm wondering if there's a starting guide for such task.