Sorry in advance if this is not the place to post this, but they seem to me to be bugs in the Page editor. (Mac 10.5 in Zimbra Desktop app around Pages)

Created a New Page inside a Notebook. Typed some text, selected all text and switched font from Times New Roman to Tahoma.
Move cursor to the end of a line in the middle of the document and type, it comes out Times New Roman not Tahoma as expected.

Also if I create a list in a Page, whats the keyboard short cut to indent items so that a nested list is created. Currently the only way seems to be using the button at the top.