This function is based on the principle of layers. For example, if the precedent cell to a formula is already indicated with a tracer arrow, when you repeat this command, the tracer arrows are drawn to the precedent cells of this cell.
可逐极进行追踪。例如，如果已显示从公式单元格指向前一个链接单元的追踪箭头，重新按击追踪箭头，可进一步追踪上一级间接链接单元。