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This article outlines how to change the maximum number of faceted navigation categories returned to a user, when the standard Freemarker faceted navigation macros are used.
Funnelback limits the number of categories returned to the end user for any given facet to the top 16 categories, 8 of which are shown on the initial load with an more... button to access the rest of the facets.
Both of these numbers can be changed, with the settings configured within the Freemarker template.
To change the total number of categories returned for a facet set the max parameter for the <@s.Category> tag. Note: the maximum value that you can set is 100 unless you increase the number of categories returned by the query processor (see below).
eg. Set the maximum number of categories displayed in the template to 32 (after more... is clicked)
e.g. Display up 10 categories for each facet on initial load and hide the rest
// Faceted Navigation more/less links var displayedCategories = 10;
Increasing the number of categories returned by the query processor
By default Funnelback will return up to 100 categories for each metadata field that is counted for faceted navigation.
This can be increased by setting the rmc_maxperfield query processor option. Increasing the value could impact performance, especially on collections that have large numbers of metadata values for the fields being counted.
e.g. Return a maximum of 150 categories per facet