What am I missing about using the QK's on a 246t. From what I can get from Uniden and the book is there is only 10 QK's, but you can use the same QK for more than one system. What I like about the QK's is being able to turn the system off/on with just a push of the button. But if you have 10 systems under 1 QK, then you turn all of them off/on at the same time. Is this right or am I overlooking something?