Multi Radio Configuration question


As far as I've seen there is not much documentation for setting up two rigs and AC log.  Just the use of a DPDT switch in the help manual.  I have both rigs configured in Rig 1 and Rig 2 but cannot get them to switch with the Ctrl+x command.  I have missed a step somewhere I think.  
Any help??
Stephen kc6mie

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