"Related Items" behavior not visible on DX control panel -> Behaviors

[zopyx]

We have a DX type in Plone 5.0.5 with the following to behaviors

<property name="behaviors">
     <element value="plone.app.content.interfaces.INameFromTitle" />
     <element value="plone.app.dexterity.behaviors.metadata.IDublinCore"/>
</property>

The categorization tab is rendered without the related items field.

There is also no dedicated behavior for related items available from the DX control panel.

So how do you create custom DX types with related items?

[davilima6]

http://docs.plone.org/external/plone.app.dexterity/docs/grok/reference/standard-behaviours.html
https://training.plone.org/5/mastering_plone/relations.html

[zopyx]

Agreed

but IRelatedItems is missing from the DX behaviors page in the control panel

[pbauer]

Check the default-types. They have a behavior plone.app.relationfield.behavior.IRelatedItems.

But you are right, that the behavior does not show up in http://demo.plone.de/dexterity-types/Document/@@behaviors. That is a bug.