onCheckedChanged: {
for (var i=1; i<=3; i++) (checked == true) ? nextItem(this, i).enabled = true : nextItem(this, i).enabled = false;
(checked == true) ? Julia.get_rel_nuc(text, nextItem(this, 1).currentText, nextItem(this, 2).text, nextItem(this, 3).text ) : Julia.rm_rel_nuc(text)
}