Is it possible to display more than 10 values in the category drop down for RQM test artifacts?

the current out of box setting allow to display only 10 values at a time when you click on the category drop down in any of the test artifact in RQM, if the value does not appear in the first 10 then you need to click on more option to list more value to select from.
is it possible to display more than 10 values in the drop down and avoid clicking on more everytime you need to select a values which is not appearing in the first 10?