When using Writer to proofread a document, it is annoying that such simple navigation functions as "Display the next whole page" cannot be accessed from the keyboard. All of the navigation commands that can be bound to the keyboard appear to involve cursor movement. Clicking on the Navigator's Navigation icon brings up a window in which it is possible to select Page navigation; clicking on the up or down arrow in the Navigation pop-up window then changes the displayed page to be the previous or next page, as desired, but there appears to be no way to make that navigation available as a permanent control on one of the toolbars or to bind that action to a key. So the enhancement request is to expose the Navigation window's "Next page" and "Previous page" functions as keyboard-bindable functions. (There may be other functions in that window that should also be exposed, but clicking on some of the icons in the Navigation pop-up window kills LibreOffice 4.4.0.3, so I have not experimented much.)
Component: ux-advise, so Status -> NEW
We're replacing our use of the 'ux-advise' component with a keyword: Component -> LibreOffice Add Keyword: needsUXEval [NinjaEdit]
With release 5.3 you can navigate to a particular page per ctrl+G. If you talk about Next Page/Previous Page and the default shortcut of page up/down: this can be personalized per Tools > Customize > Keyboard > Navigate. There is a known issue that scrolling with the Navigator's buttons scrolls differently. Your request is not fully clear, either it's a WFM (go to a particular page) or a duplicate. I take the latter. *** This bug has been marked as a duplicate of bug 105776 ***