This is really easy to do. The only thing that can cause a problem is that the screen options might not be displaying the Author field on the edit post / edit page screen. But, again, it’s easy enough to get this to appear.
Since WordPress 3.0 custom menus have been available in WordPress under Appearance > Menus. Whether or not your theme supports custom menus depends on the theme you are using and if the code has been added.
Recently I was asked how to make a link on a custom menu open in a new window or tab.
The solution turned out to be related to screen options, which is similar to the solution for viewing all of your plugins on one page.
Recently pagination was introduced to the list of plugins in WordPress. This may or may not be useful to you.
The default number listed is 20, which is probably more than most people have installed. This, however, is a guess and I don’t have any stats to back that up – I’m basing that on my experience working on WordPress sites and the plugins that tend to be installed.