Drag Pool to diagram as a white box

How can I drag an existing pool onto a diagram and show all it’s dependent model elements i.e. white box. I’ve tried toggling black box but only changes style of the pool. I’m using Agilian 3.0

Dear mitchell,

When you drag and drop pool onto diagram, please select also the children of the pool. By doing so, they will appear in the pool after drag and drop.

Best regards,