Method customEvent

source/ui/EditUi.cpp:2884–2889

				if (key->key() == Qt::Key_Up)
				{
					ItemMove(true, 1);
					return true;
				}
				else if (key->key() == Qt::Key_Down)
				{
					ItemMove(false, 1);
					return true;
				}
				else if (key->key() == Qt::Key_Backspace)