You cannot include/convert this Control. It doesn't have a Parent entity. To configure one set the Parent entity in the last step of the Attributes wizard. (Attribute, Cascading Combo, Combo boxes, Form Designer)

Summary

Cascading Combos present two or more combo boxes working in conjunction with each other, prompting end users with only relevant data. Once a value is selected from the first combo the second one will be automatically filled.

In the Forms designer, when a Cascading Combo is being configured and the chosen entity has no a parent entity, the following error is displayed.

Applies to

Bizagi 10.x

Symptoms

An error message is displayed when trying to use a control as a Cascading Combo.

Cause

Cascading Combos are available for Parameter entities that have a parent entity configured. In the Forms Designer, when a Cascading Combo Control is added into the form, a parameter entity must be chosen and related in the Data Source. Bizagi evaluates if said entity has a parent entity configured. If it doesn´t, Bizagi displays an error message warning about this.

Solution

Make sure that the entity related to the control you are trying to associate/convert has a parent entity. If it doesn't, you can associate one by following the steps shown in http://help.bizagi.com/bpmsuite/en/index.html?parent_and_child_entities.htm.