The LaserWriter picks up its default settings, such as tall orientation, from
the printer driver. To bring up a document with settings different from the
default, such as wide orientation, create a special "boilerplate" document
with the settings you require. Once you change the defaults, the new
configurations are stored with the document when you save it. This method
gives you much more versatility and is much easier than using RESEDIT to
change the driver.
From then on, open that same document for those printer settings; they will
automatically set to those stored with the document. Then use the "Save AS"
option and save the document with a new name, which will preserve the original
for the creation of more documents with those special settings.