Actions to multiselect comboBox

Is it possible to add action to a multi-select combobox? I tried but seems not supported but I might be making a mistake…

<actions>
                    <action id="entityLookup" type="entity_lookup"/>
                    <action id="entityOpen" type="entity_open"/>
                </actions>

I want to create any missing items through the action button.

Hi!

Multi-select combobox doesn’t support any actions. You might need a multi-select combobox picker: MultiSelectComboBoxPicker Sample

Regards,
Dmitriy