You configure map linking by assigning the appropriate collection-type attribute values.

1. In the Content Library, double-click a map to open it in the Content Editor.
2. Set the collection-type attribute of the parent topic by doing the following:
   1. In the pane on the left, hover over the parent topic and click the wrench icon.
   2. From the collection-type drop-down list, select a value.
      The collection-type attribute can take the following values:

      sequence value

      Generates an ordered list of links from parent to children. The order of links is the same as the order of topics in the map.

      unordered value

      Generates an unordered list of links from parent to children. The order of links is the same as the order of topics in the map.

      family value

      Generates an unordered list of links from parent to children and from sibling to sibling. The order of links is the same as the order of topics in the map.

      choice value

      Uncommon value used in custom outputs that enables the user to select one child topic to continue. In most cases, it is rendered in the same way as the unordered value.

Important:

Linking created by adjusting the collection-type attribute is compatible with the DITA Open Toolkit (DITA-OT) publishing scenarios with the args.rellinks parameter set to all, and Heretto Portal publishing. It is not compatible with Heretto PDF Generator publishing.