Advanced Upsacaler control

Is there anyway to control advanced upscalers using C# in HDRP?

So far I can only see some control settings for DLSS and FSR in camera data, but not STP. Also can’t seem to change forced screen percentage to lower the resolution. This used to work with DynamicResolutionHandler.SetDynamicResScaler for software upscalers, but not for advanced ones like STP. Is there any documentation on STP or is just editor controlled thing.