[Transform] Add fiedl from calculation

First of all, thanks for this great tool which helps me monitor my service and found 3 hidden bug within a month!!!

I came into a problem which is how to use Add field from calculation Transform when Field Name will dynamic change? For example:

How can I get the currect total of all fields? Less fields are not a problem since they will become null or 0, but what if there are new fields added to the table?

Besides, If there is a “all fields” option will be great! Since it should automatically select all available fields and save the time for manually select all each field when there are many fields