add groups dropdown in user maintenance

WHM

The add to a group dropdown in the user maintenance page under governance, needs a scroll bar. We have almost 5,000 groups, many with very similar names and there are only 10-12 slots in the dropdown. Go to Governance, people and select a user. Then click add to groups. click the search dropdown. very limited search results when you are looking for a given group that shares part of the name with hundreds of others.