When I have a text field set to "Auto List of Values", I'd like to be able to start typing a value, and then the dropbox should drop down automatically with the values that match the text that I have entered so far.  Then I'd like to use the down arrow key to select the value I want, and then press Enter to complete the entry.  Right now, the dropbox doesn't drop down automatically, but I have to click the down arrow button at the right end of the cell.  (Is there a keystroke that makes it drop down?  I tried Alt-Down, no luck).  And if I type "Goo" and then click the down arrow, the dropbox shows a value "Goo" even thought that has not been one of the values in that field so far.  I guess I could just use the arrow key to select "Google" and press Enter at that point, and the "Goo" would go away, i.e. would not appear in the dropdown list the next time I use it.