I'm starting this meta due to the responses and down votes received for this question:
The comments (and am guessing the down votes) are here due to the existence of the man page for the following tool (
tmux in this case).
I have unskillfully in the initial question added the part
I'm can't seem to find a description of the syntax for customizing the config file which is a fault on my side and was corrected.
Having that removed, would ask for your opinion of the question as it currently is. I find that the existence of a documentation doesn't imply an invalid question per se.
I find that StackExchange has grown to be a place where people can get quick pragmatic answers to most common problems, and unless a generically formed question, pointing to a documentation isn't an answer but a form of patronizing. Patronizing is bad because it pushes newcomers from starting to use the open source tool and once they get value from it perhaps even participating in it's development.
What I would expect as an answer for this question would be an explanation of what the three commands actually do and how, for those are the commands often seen at user examples and would be more practical to have them as a reference and a man page for whoever wants to know more.