I would suggest the following extensions for the "Split Pages" dialog:
1.) The possibility to select more in the list of separators to delete them. At the moment you have to select and delete each entry individually to delete it.
2.a) It would be very helpful if you could select the dividing lines for each page to split the page. At the moment you need to arrange the guide line, then use the function only for the current page (the dialog closes) and use this procedure for each additional page individually. This is very cumbersome.
2.b) An alternative to 2.a) (which I personally would find even more helpful) would be the possibility to divide the page by the help lines defined in the editor. Since you can define help lines for each page individually in the editor, a function "Split pages by help lines" would be a good extension to the already available functions.
