ADF7021 - is the order of writing register words relevant?


I want to modify the auto AGC settings, use manually written gain values. However the RX behaves identical (means, totally deaf, sensitivity is quite bad) all the time, so I wonder if I apply them in the wrong place. The piece of code I am using is

MMDVM_HS/ADF7021.cpp at master · juribeparada/MMDVM_HS · GitHub 

However I am not a coder, but a RF guy, so I just change some values in lines 528 and 739, according to the ADF7021 data sheet. The data sheet does not tell if a certain order has to be kept when writing to register 9...but maybe this is necessary?