Re: automatic counting?
Welcome to the forum.
If I add measures now, will Noteworthy detect where a rest should be according to the time signature.
No. Noteworthy does not automatically enter barlines. Noteworthy will allow barlines anywhere and only requires them where there are more notes/rests than can fit in one line on the printed page. In that case, Noteworthy requires a barline at the same time moment in each displayed staff. If not, Print Preview goes somewhat bonkers.
If you have entered note (or rest), go to the menu, and click 'Tools', and run 'Audit Bar Lines'.
the rests will appear when the rhythm doesn't fit.
Not exactly. Audit Bar Lines will add rests to the end of the staff to pad it out to a full measure. More than likely, Audit Bar Lines will split a note into 2 tied notes (or a rest into 2 rests) "when the rhythm doesn't fit."
Noteworthy's behavior of not automatically adding barlines is by design. It can be confusing to new users, but once you get used to it you will probably agree with most seasoned users that it is a blessing.