How to make a selection from migx fields for all child resources? and not just one?

Question

MODX

The question is as follows: there is a parent resource in which you need to display migx fields from child resources.
But it turns out to draw a conclusion only when specifying a specific resource id. An example snippet call:

More specifically, is it possible to specify not "&docid=`27`", but all children ?
PS The name for migxTV is the same on all child resources. There are three fields in MIGX - tb1, tb2, tb3.
Chunk "priceTableTpl":



When specifying a specific resource id, everything works. Thank you.