I tried, but it dose not work, so I do not know whether the usage like above is correct.
2. As you can see, for column e3, in the Total Mode, there is no function can be used to calculate this data? Is it possible to use an expression to calculate the data? And of course, if we find a solution for my first question, I can add a text object to get the value of total of e3.
Thanks very much and look forward for your feedback.