Hmm. I’m not familiar with PortPilot…
But RD Tech USB 3.0 ‘comprehensive’ tester (that’s what the model is called in the RD Tech AliExpress store) does ‘spoof’ the protocols (in settings).
Another USB meter that does this is what’s called the ‘white-tail’ USB meter, an example of this is the Mantistek ‘white tail’:
As you mentioned, the ZY1270 also has that feature.
However, I’m not sure if one can force one specific protocol to emulate though…
For protocol detection, the new meters also seem to have that feature (not just display 1 or 2 protocols supported, but testing the protcols — note this is not completely foolproof though). The ZL1100 USB load tester also has similar as the ZY1276. The Power-Z meters (KM001, KT001, FL001) also appear to have that protocol detection feature. The RD UM meters only displays the current protocol being negotiated (the UM25/UM34/AT34).