HDMI5 V1.1 Breakout Port Usage?

[LegendaryZotar]

I purchased a HDMI5 V1.1 to work with my CB1+PI4B Adapter, and I saw that there was a 4pin breakout port advertised on the website, but the only information about it is that it "allows more customization" and nothing more. Can I power and control my touchscreen off of this port? does it allow for other devices to connect to it? If anyone has any information about it please let me know, so far I've tried customer support on Biqu but they are extremely unresponsive and reply once every 4 days and completely ignore the question, same with aliexpress btt team, hoping I can get more help here.
I tried soldering 4pins and connecting it via USB but nothing happened, the screen turns on but doesn't display anything, but it does with the USB C + HDMI. I have a very tight space and I am trying to see if I can utilize the 4 pin instead of having 1 bulky hdmi cable