compressor parameters

Hi,

I use 1452 on my target board.The compressor used is : Dynamics Processors->RMS->Standard Resolution->Lower Range(-90~+24)->Stand RMS.But I don't know how the parameters of the compressor calculates, like HOLD, DECAY,TC,ATTENUATION.

The parameters of this compressor is different from that of others. The version of Sigmatudio I used is V3.11.

Best Regards,

Alex