Dear Hamid,
Very many thanks for the enlightening reply.
As to (1) I wonder if Kino-san can make his macro available to me, please.
As to (2) I didn't know of this trick of hitting <Command-A> twice. This would save me at least an hour, because I am dealing with A4 900 page manuscript.
As to (3) I had actually read that paragraph in NW Pro Help on "Multi-page Threshold" and replaced with "5" with "155," but it wouldn't work. Here also I should have set "155" before starting to write the file. Maybe Kino-san has written a macro for resolving this knot.
Very best,
Takamitsu