Currently will be after entering page break (e.g. CTRL+Enter) one thin dark blue
line in the beginning of page. Very often most of people (I teach in school and
pupils are saying it) did not notice, that somewhere is page break. I always
change it to bright red. But could there be some kind of more noticeable sign
like in MS Word is:
---------page break---------
--------column break--------
etc.

This comparing with MS Word is not an issue but there it is good realized. I
mean that getting similarity of MS Office is not purpose, just more noticeable
and attractive - this is purpose. But MS Word is good example.

This would be also good if it is somehow highlighted to be more attractive and
noticeable when nonprinting characters are switched on. E.g. this text color is
bright red.

This applies to all break types in Writer.