User Experience design is something of a passion for our team at Idox. A psychological observation that has become known as Miller’s law, states that the number of objects an average person can hold in working memory is about seven.
Applying this principal to user choices on your web page, if your users have more than seven categories to choose from, they will forget the first categories by the time they’ve read the full list.
If you would like to change your Directory categorisation at all, talk to our support team in the first instance.