When working with an extensive model containing a lot of packages and folders, it takes a lot of time to scroll among the elements to reach the desired place in the model tree.
It would be nice to have something similar to an address bar where you could switch between the basic model elements.
An easy to develop solution that would not break too much would be to provide a way to quickly navigate to different elements in the current tree in a form of a dropdown menu.
5 icons of main model categories could be displayed on top of the model browser. When clicking on them a menu would display showing the folder structure. After clicking on the folder the browser would navigate to that folder.
A Back button could also be introduced to quickly navigate backwards in history of the selected model elements.
A sync button could be introduced that would select an item in the model browser based on the element being currently edited.