Hi zell,

yes, you can do this with tree events and a custom property editor written with angularJS:

Tree Events:
https://our.umbraco.org/documentation/extending-umbraco/section-trees/trees-v7

AngularJS:
https://our.umbraco.org/Documentation/Extending-Umbraco/Property-Editors/creating-tutorial1-v7

Example for register tree events:

private void ContentTreeController_MenuRendering(Umbraco.Web.Trees.TreeControllerBase sender, Umbraco.Web.Trees.MenuRenderingEventArgs e)
{
                switch (sender.TreeAlias)
{
                    case "content":
                        //creates a menu action that will open /umbraco/currentSection/itemAlias.html;
                        var i = new Umbraco.Web.Models.Trees.MenuItem("itemAlias", "Item name");

                        //optional, if you dont want to follow conventions, but do want to use a angular view
                        i.AdditionalData.Add("actionView", "path to your angularJS view");
 
                        //sets the icon to icon-wine-glass 
                        i.Icon = "message";

                        //insert at index 5
                        e.Menu.Items.Insert(5, i);
                        break; 
} 
} 

Hope this helps?

Best,

Sören