I added a comment to this feedback post. In this post, I made a comment on how to get Tab select working in a grid component for a combobox.
It would be nice if tab select was a parameter for any dropdown component and autocomplete. Maybe a parameter called "TabSelect"? It would need to fire before the grid component picks up the Tab key first in InCellEdit mode.
If that was changed above, then the grid component could have the following:
Enter key to move down the list, and Shift-Enter keys to move up the list. Is there a way to do that currently, or could it be added?