I have been trying to understand what you want.
I think you are asking me where in the System side the radio numbers are. Like these in System / hwSettings:
<object name="ManualControlSettings" id="0x72A1176C">
<field name="FailsafeChannel" values="-1,0,0,0,0,0,0,0,0"/>
<field name="ChannelMin" values="174,174,171,172,0,174,171,0,0,0"/>
<field name="ChannelNeutral" values="175,512,509,512,413,175,853,0,0,0"/>
<field name="ChannelMax" values="852,844,852,852,750,850,853,0,0,0"/>
<field name="ResponseTime" values="0,0,0,0,0,0,0,0"/>
<field name="ChannelGroups" values="DSM (FlexiPort),DSM (FlexiPort),DSM (FlexiP