I would like to hide the title in the preview pane because it shows the current file name but that is redundant because the cursor already shows the current file that is in the preview pane.
It's not configurable. In some cases it duplicates information but at least with %q macro it provides information which is otherwise can't be seen.
Thanks! maybe a feature request then, just joking :)
There could be an option to customize it, but it would have to take more things into account:
%q