The ANOVA makes a general statement about whether or not there are
significant differences between the data groups. Once the result is
positive (p < 0.05), you need to employ additional tests to find out
which of the multiple comparisons that are possible for your data set are
significant. So-called posthoc tests perform multiple comparisons of a set
of several data groups.
In the ‘legacy’ versions, I had a UDF (user-defined function) =panova(groups; values) to accomplish this. You can of course install version 6.70 and ignore the suggestions to update to the NG series (version 7).
You need to be aware though that UDFs don’t transfer well to other locations. So, if you want to send your file to someone else, the UDF likely won’t work even if the other person has the Toolbox installed as well. That’s why I never really advertised the function so much. But I used it myself for situations just like yours.
I could easily make it available in the API, but give me a couple of days… Then you can write your own UDF and continue to use the version 7 series.