When I press . I get popup box but items in it are not highlighted when I
scroll through it with cursor keys. Tooltip with parameter info moves down
with selection, but it's still not easy to identify what's the selected
item. I think this is a bug.
On the other hand, if I type first few letters selection in the popup box
shrinks and contains only items that start with typed letters (they are all
in blue) which is, I guess, expected behaviour.