Calc - Searchable Drop-down list without using mouse

I am going for a way to make a drop-down list display only the matches that correspond to the text that I enter into a cell, and for it to update the more characters that I type. I have a named range that I want to search through. I have tried both of the following but neither is want I am looking for. In my target cells I have selected
1.) Data - Validity - Allow List - pasted the list into the Entries Box
2.) Data - Cell Range - Source - type in the Managed Name

Both of these approaches require me to click on the down arrow to select the appropriate data.
I do not want to have to use the mouse to select the correct data. Ideally I would like to type a few characters and either hit enter if it matches, or use the down arrow to select the correct data and then hit enter.

Any help would be greatly appreciated.
Dave

Try Alt-Down key to open the List via keyboard.

Thanks Wanderer, I was not aware of that keyboard shortcut. This is certainly far better than using the mouse to select the data. I would still like to be able to just typing in the cell and see the list dynamically narrow to fit the typed data. But if that is not possible I will use this as an alternate solution.
Thanks