You can have a personalised navbar for each person by creating a list of the links and then entering the links for each person that you want to see in the navbar. Create a dataview that mimics whichever navbar you wish to have personalised (for example you can insert a row next to the top navbar, hide that and then customise your list view to look like that.) If you have view only my own switched on then each person will see their own navbar selections. The downsides are that if you are an admin you will see multiple navbars (unless you set maximum number of items to be 1) and you either have to enter the data as that person or get them to enter it themselves.