He who is Paul said on Sun, 12 Nov 2017 02:32:06 -0500:

Ooops. I mean Alt + Space and then c.

You can also experiment with Alt-F4.

Great! Thanks! That's even more perfect!

(Alt + Space) and then c ... closes the top command window that the app
brings up, but you have to move your fingers again to do it for the next
window below it.

With (Alt + F4), you keep one finger on Alt and you hit F4, F4, F4, F4, F4,
etc., until all the windows you want to close are closed (I always want to
close all but the one working window but I never will know ahead of time
which in the series of windows the one working window will be).

So both (Alt + Space and then c) and (Alt + F4) work to close the command
windows opened by the app - but Alt + F4 is even more perfect!

Thank you for caring and for helping!