I am assuming that you already have a Products page as a main page in your
publication that is included in navbar, and from that Products page you want
to link to different product collection pages, or subpages or "daughter"
pages depending on how you want to describe them, but you don't want those
subpages to show up in the main navbar.

When you want to create a new Christmas Collections page, go to your
Products page in your Publisher file. Go to Insert > Page and a dialog will
come up where you have the option of selecting a page type. You can select
one of those, but at the bottom of that dialog there is a More... button.
Before you click that button, note the checkbox also at the bottom "Add
hyperlink to navigation bars". Uncheck that option and the new page you
create will not be added to the main navbar. If you then click the More
button, another dialog comes up where you have the option of inserting the
page before or after the current page, and the options of inserting a blank
page, create a text box, or Duplicate all objects on Page, and you select
the page. If your main Products page has most of the design elements on it
that you would want on your Collection page, then the Duplicate all objects
option would be your best choice. After creating the page, you can edit it
to fit the specific Collection. Note also that there is another box to
uncheck to Add hyperlink to the main navbar. Now, it isn't important that
your pages are in linear order when you are on the web, but if you want to
keep your main pages together you can go to the last page in your Pub file
and insert the three Collection pages there, and still Duplicate all the
objects on the Products page. What ever works best for you.

Now you have a new Christmas Collections page say at the end of your
publication, and you want to link to it from your main Products page. You
can do something as simple as a textual list of the different Collections on
your main Product page, and select the text, insert hyperlink and link it to
the appropriate subpage. Or perhaps you will have short paragraphs
describing the different Collections. Insert a hyperlink in those paragraphs
some where to link to those subpage Collections.

Does that answer your questions?

DavidF