REQUEST: Combobox Dropdown menu bind in keyboard keys in searching

Please add a binding which will select items by first letter when you press a keyboard button. If a user type faster example:
In 1 sec the user can type "APP" while the dropdown is currently shown, then Selection Box should locate the items.

DROPDOWN MENU ITEMS:
```
Data = [APPLE,
BANANA,
CARROTS,
EGGPLANT,
TOMATO]
```