IMHO, thats up to the program's coders, not mIRC. If the people who wrote the program said it should close immediately, well then thats what it should do.
How do you use multiple commands with one /run without making a batch file? How do I add a "pause" at say the end of the "move"... For debugging purposes I want to see if the move was successful. I'd rather not waste my time to rewrite the internal move command or make a batch file to do that, when such a simple option could be added to mirc.