You can display/hide components families according to your needs in case of visibility problems, for example. To do so, right-click the Palette and select Display folder to display components families and Hide folder to display components without their families.
This display/hide option can be very useful when you are in the Favorite view of the Palette. In this view, you usually have a limited number of components that if you display without their families, you will have them in an alphabetical list and thus facilitate their usage. for more information about the Palette favorite, see Setting the Palette favorite.