Data table Include inside doctype

Say i need to place a table data in doctype. But no. of column is not specified. Column number could be anything. So i can’t use child table. The table data also needs to have an edit option.

In previous version’s Text Editor this option was available by it’s code features. How can i achieve this v12.

I am asking an almost identical question: Is it possible to override the query of a child table? How?

Not getting any answers, tho’. :unamused: