Choose columns in edit table mode to hand over to microservice

Dear *,
how can I select the columns to hand over to the microservice in edit table mode?
In my table I have one editable column and in the microservice, in which I save the edited rows, I only receive this column as well as sys_user and sys_date. I would also like to hand over other columns of this table, which however cannot be editable, to calculate a hash key. Is it possible to even hand over columns, that are not displayed in the table, but are present in the datasource?
Thanks a lot for your help,

Seems, I accidentally filtered out these columns in my wf. :see_no_evil: so apps actually hands through all the columns in the datasource!