hello @beyerj,
I prepared example using aggregate report in our scanning examples repository. The main “trick” is to import the same aggregate report for each module.
I also wrote a guide about this, have a look here [Coverage & Test Data] Importing JaCoCo coverage report in XML format
I didn’t find any issue importing the XML aggregate report, current plugin understands the format produced by JaCoCo.
Feel free to come back to us if you think there are some improvements we can do.