Add Button in Child Table

frappe.ui.form.on("Sales Invoice", {
	onload: function (frm, cdt, cdn) {
	let btn = document.createElement('a');
	btn.innerText = 'Refresh';
	btn.className = 'grid-upload btn btn-xs btn-default';
	frm.fields_dict.items.grid.wrapper.find('.grid-upload').removeClass('hide').parent().append(btn);
	btn.addEventListener("click", function(){
	});
	}	
})

Thanks for hint @magic-overflow :grinning:. This is what I’m looking for.

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