When you have a lot to display in a dropdown list, you need the Kendo UI for Angular dropdown treeview to organize your data. In addition to letting you get the UI you want, it handles a variety of complex data structures.
The five comboboxes/dropdown lists that come with the Kendo UI for Angular toolkit let you get exactly the UI you want. But all of the components share their functionality so you don’t have to learn five different controls to leverage them all.