How to add table to Related objects tab of WTPart?

Hi.

Is it possible to add custom table to "related objects" tab of WTPart.

I defined action:

<action name="myCustomTable">

    <component name="my_custom_table"/>

</action>

The name is same as @ComponentBuilder("my_custom_table") of my table builder class.

I have added this action to <model name="partInfoRelatedItemsTab" resourceBundle="com.ptc.core.ui.navigationRB">

model.

But I cann't see my table on info page. There are no error messages in MethodServer log too.

What else should i do to add table?

Thanks.