I find that Mathematica's status-indication constants like
$TimedOut are very useful, and would like to use them in my own code. Sometimes I'm tempted to create my own when developing packages, but that create context issues around where they're created, and prepending them with
Global' all the time gets tedious.
So, it would be very helpful to have a list of all the
$ constants that Mathematica uses, so that I can use them too. However, I have been unable to find such a list. Question 1: Does one exist?
Question 2: Any advice for creating similar constants that have a similarly global reach?