As soon as new job starts by opening new image file or reopening current one, app creates list of pages with
source image segments to be printed out using requested paper size, printer margins and overlaps. In wall art creation mode all the segments have
identical sizes and can be used for multi-panel wall splits. Printing orientation (Portrait/Landscape) is determined by source image orientation.
In wall art creation mode overlap is the area inside of the cut dashed line which does not belong to the page,
it is the area covering thickness of the page's panel.
In wall art creation mode list of overlaps can be modified by user - up to 16 different overlaps in the list is allowed,
maximum overlap size is 2".
