# Combine Category elements in custom filters

You can combine several Category Filters to display elements that are in any of the selected Categories.

##

For more details about the product and how to configure features, click Help or press F1.

## Steps

1. In the Category Filter toolbar, select Define Custom Category Filter.
2. Select the Categories you want to add, then click Add.
3. (Optional) If you want to view elements that do not have a Category (they belong to the Not Categorized Category), select Show Not Categorized.
4. (Optional) If you want to view elements that are predefined elements (they belong to the System Elements Category), select Show System Elements.
5. Click OK.
   Only the elements assigned to the selected Categories are displayed.

## Category Filter Properties dialog box

Use this dialog box to define category filters.

Option | Definition
--- | ---
Add | Adds the selected categories to the Selected Categories list.
Remove | Removes the selected categories from the Selected Categories list.
Show Not Categorized | When selected, displays all elements that do not belong to a category.
Show System Elements | When selected, displays predefined elements in the system.