Similar SelCall procedures are found in the 3900 Series Digital Radio Test Set Operation Manual for those using Viavi/Aeroflex hardware. 3900 Series Digital Radio Test Set Operation Manual
You can find exact menu hierarchies for CCIR2 in the Freedom R8100 Operator's Manual . CCIR2 01:14:34
The guide likely covers how to use the Up/Down keys or the spin knob to highlight and edit specific Tone Codes within the CCIR2 table. Similar SelCall procedures are found in the 3900