I assume a calculation can be made in Datamananger: when you click on edit at the datafile below. Add field/calculated field.
However I have 2 datafiles and when I want to create the calculation I need to have 1 metric from 1 datafile and 1 metric from the other datafile. When I select Add Field/Calculated field, I only get the metrics available from 1 datafile. (the one selected in the bubbles in the begin screen)
So the question is how to combine metrics from 2 datafiles in 1 calculation?
See attachment for the screenshots for clarification
