How do I access child widget components through parent widget?

I have an inventory widget with a scroll box and uniform grid panel that I want to put in my main widget container.

But when I search for the uniform grid panel after referencing the inventory widget from the parent widget, I can’t access the uniform grid panel in the inventory widget.

Will I have to just create the inventory widget separate from the main game HUD? Or is there a way to do this?

I hope that made sense.

The reason I need to do this is because right now I can’t create on drop events for just a uniform grid created from the palette. Or at least I don’t think I can. If this is an option, that knowledge would be appreciated as well.

In the details panel for your child widget is the “Is Variable” box checked?

Apologies for my negligence. Thanks.