Hello Yavor,

Thank you,

this look on first attempt as resolution for our problem.

Yes it gets always id, for use case when I closing dock it return correct Id.

But not for closing over tab, it returns Id what is not at our layout.

Our sample of layout:

{
“type”: “LayoutGroup”,
“items”: [
{
“type”: “LayoutPanel”,
“id”: “tabsWindowea26“,  //generated by docking layout
“draggable”: true,
“floatable”: true,
“items”: [
{
“type”: “LayoutPanelItem”,
“label”: “LabelOfOwnComponent”,
“selected”: true,
“draggable”: true,
“floatable”: true,
“id”: “IdOfOwnComponent”  //inserted own item with own id by insertAfterItem() 
}
],
“size”: 1534,
“min”: 30,
“tabCloseButtons”: true
}
],
“orientation”: “vertical”,
“tabCloseButtons”: true
}

Closing by dock event.path[0].id return correctly dock id tabsWindowea26.

Closing by tab event.path[0].id return random id tabs6d77.

Best regards

Jozef.