Using Neo as controllable but power from pedals?

as i remember, if you pair the 2T as indoor trainer (and no paired as a power source) and the pedals are paired as power sensor (via ANT+)  then the displayed and recorded power will be the pedal's power, but the training is controlled by the Neo and its power values (ok, in normal case these 2 power numbers are within 1-1.5% maximum. if it is more, then something is not ok in the system , the pedal and/or the Neo are not right)

Is there any way to verify that? If I look at connect web it lists the trainer, not the pedals on the side.

Also, it does not register elevation even though I adjusted grade during the ride. Should it? I expect it at least.

And lastly, any way to adjust the grade in .1 increments?

if you send me the FIT file in pm, i can take a look for the source of the power. but you can check it easily how different (or equal ) are the 2 powermeters, start a power workout in Tacx Training app on your mobile (or tablet) via BT, lets say 150w ERG mode (but you can do more steps between 100 and 300w to see how big or nothing is the diff), and look the Edge Power numbers (where the source is the pedals).

indoor there is no elevation, just duration :) but if you need virtual elevation and track , use a virtual software like Zwift or MyWhoosh, etc. . btw the best method indoor (for performance improvement ) is the ERG mode, at least i train since 12-13 years with that.