Batboard

Hi there I am playing with multikey capabilities in a 800Mhz trunking radio. It seems that I can only strap specific channels/talkgroups to a single key. I was hoping to have mutikey capabilities similar to the conventional side where you can receive on multiple keys and then select the key you wish to transmit on via the Kset function. Can anyone tell me what I am doing wrong, or if this is at all possible.

The radio is an XTS5000 with the following options

H38
Q806
Q173
Q361
H14
H46
Q446

Thanks