It's not clear to me what you are asking.
I am a newbie.
in the tool palette there is a "," instead of a "-" between page 1 and 2.
Normally, in a facing-page document, page 1 is up to the right, with pages 2 and 3 in a spread. What steps did you take to get the page position in your document? As for the comma, do you have a section start on page 2?
Normally, we work with Framemaker. The first page of the body text in the book file must start Left. In indesign is that not possible. There is an procedure to start it left (add a page before the page that must start left, disable "allow document pages to shuffle", delete the inserted page, and then the page (who first started at right, will start at left)).
I did this procedure but I remarked that there is a "," on the marked blue pages in the capture instead of a "-".
It was also strange that when I inserted the blank page with the same section numbering and same master page setting, the link between these pages where gone. I have to set the link manually.
I hope it is clear now...
What do you mean by "the link between pages"?
The green line between the bottom of the textframe on page 1 and the top of the textframe on page 2.
If you are saying you have a text chain that runs through a set number of pages (let's say pages 1 through 8), then you add a page between 4 and 5, and the new page 5 doesn't contain any text, that's the way it's supposed to work. The text that was on the old page 5 is now on page 6, and the new page 5 is blank, because you created it as a blank page. If you want the new page 5 to continue the text chain from page 4, click the out-port of page 4's text frame and click on page 5.
It looks to me as if you had originally started this document with page two, and inserting the page in front created a new section (all of your page numbers are now swapped left for right in terms of reader expectations). The comma in the panel between pages indicates that there is a section boundary there (note the two black triangles above the page icons). You could select page 2, open Numbering and Section Options and uncheck "Start Section" and the comma will disappear, page one will shift to be a single right-hand page, and your other pages will switch sides and be arranged in the same two-page spreads they were in before you inserted the page.
Yes Peter, that's it! Many thanks.
So easy, when you know how! Thanks.