Midi output deviceproblems

Hello
I am a new registred user of notation composer 2.5.2.
I have a problem with the midi device output.
I have two midi output A -output B-
I load a midi file . In the staff window I choose the midi output A for some staff and midi output B for one staff (staff 4 channel 4 for example).
I save the change.
I quit notation composer. After when I load the saved midi file all the staff are on midi output A.
Before it runs and now no more. What do I wrong?

Howdy Tenda,

When you save a file, it automatically saves as a .not file. You'll want to re-open the saved .not version of the file to have the changes that you saved.

ttfn,
Sherry

Hello
OK
But when I"ll want to re-open the save.not version of the file I don't have the change that I saved.
I believe that come because during my work a window appeared"reassign staves to new default device" and that I do something wrong in this window.
I think that I made an error by selecting the change for all the songs and not for this only song. After several handling I succeeded in opening this window"reassign staves to new default device "and now all turns correctly, but how to reach this window more easily

Hello sherry.
Many thanks
Your explanations are very clear. (and I find notation composer wonderful)
I changed my profile (tenda) so it corresponds what you have in your database since my purchase of notation composer 2.5.2