TAA3020: On-The-Fly (OTF) analog gain change of TAA3020 vs TAA3040/PCM3140

Tool/software:

I would like to utilize the internal channel analog gain adjustment of TAA3020 and TAA3040 and PCM3140-Q1 when the device is running (On The Fly change of gain). So far, I have only found that the TAA3020 supports On The Fly Gain change.

1) Is this the case? If not, can you point to the location in datasheet that states that TAA3040 and PCM3140 also supports OTF gain change?

2) For TAA3020: In the PurePathConsole3 TAA3020 app, I am not able to change the analog gain setting when the eval kit (hence the TAA3020 device) is powered. The TAA3020 supports OTF gain change, so why is this setting greyed out in PurePath when device is powered?

Thanks a lot for your support on this one,

Jacob.