Is it possible to execute concurrent statements in mql4?
Could you enlighten (e.g. by example taken from other programming language), what the "concurrent statement" in programming means?
I believe he meant an alternative to the "sequential statements", but there are not many languages that implement them. Multithreading is a means rather than a statement.
The answer to the OP question is : yes. While you can't deal directly with threads with mql, you can "mimic" multithreading by running several EAs (for example).
Of course, the question would need more details to be clearer.