AEP schema on class XDM Individual Profile - how to store ingestion batch

Hi, I have a schema created based on XDM Individual Profile class. I would like to know if it is possible to store the ingestion batch ID in "createdByBatchID" field that comes out of the box with the class. I am thinking of some run-time function that I can map to that field that will actually insert the current batch's ID into that field, for example similar to how I could map a calculated field now() to _repo.createDate?

On a more general plan, are there metadata functions, like current user loading the data or current batch, stuff like that, that can be mapped to the dataset so we can have audit information attached to the actual data?

Thanks.