ComboBox grouping Question

Is it possible to create a ComboBox with groups like the attached screenshot. And when yes, how? Could not find it in the documentation.

ComboBox grouping Question

Was asked 6 years ago (https://vaadin.com/forum/thread/16942379/combobox-optgroup). Maybe still not possible?

Still not possible

More information why here: https://github.com/vaadin/web-components/issues/3509

thank you

@resolute-horse You can try this components :
https://vaadin.com/directory/component/treecombobox