I posted a solution that worked for me using iTerm2 on OS X to
StackOverflow:
http://stackoverflow.com/questions/26180096/os-x-byobu-vertical-
split/26470118#26470118
It involved removing OS X keyboard shortcuts that could interfere,
updating the iTerm2 profile key map to send the correct escape
I don't know if this is still open or not as it has been a while since
the last comment.
I did have a few things to add that may be related to some of the
problems described.
First I have a Macbook Pro about 5 years old now. While there are
function keys they do not operate as function keys by
