Ability in a Custom Table worksheet field to pull data from related entities

Who would benefit?

All users using Custom Tables

What impact would it make?

It would allow to aggregate information from related entities (e.g. sum of work done from epics which have a relationship (many to many or many to one) to the custom table element)

How should it work?

The same way it is possible in a worksheet field of an Initiative to pull data from entities (Epic/Feature/...):

sum(self.epics[].work_done)

sum(self.features[].work_done)