this version is still buggy wile inserting pages:
- I can insert page. Fine.
- then when I say to add "fit page" on the inserted page, but all pages next to inserted page disappear!

Another bug:
- several pages with templates and pictures
- I add a new page
- I try to replace a picture in a previous page by another picture (D&D on the picture in the queue), then this new picture is fitted on the last page instead of the place I wanted.
- on the second time, it works (I think because there is no "new page" added as the picture fitted in this new page).