Right now only one Item can be the currently selected item in a panel bar even if multiple are open. I suggest that we can set multiple selected items (more than one opened panel can have the selected class injected onto the header) 

One possible way this could be achieved is setting the selected attribute to True, and letting the developer deal with toggling the booleans on his end. (As of now, the panel bar will override the selected values as soon as one panel is selected) 

I'm looking at the samples of panel bar for Angular 2, I would like to set the orientation horizontal instead of vertical, I tried using the attribute orientation="horizontal", it does not seem to work, can you please advise ?

Thanx

An option to set visibility of a panelbar item would be great.

As it is now, if I bind to a collection of PanelBarItemModel items, I can't use title templates, and if I use *ngFor with panelbaritems, I can't set visibility. Especially if the visibility condition is an observable