MKOB: Provide a 'most recently used' wire list to select from

[AESilky]

It isn't unusual to bounce around between two or three different wires while enjoying the Landline Telegraphy Experience. It would be nice if, in addition to the text entry, up/down buttons, and active-wires page, there was a dropdown list of the last few wires connected to, that you could select a wire from.