Did you used some advanced fields like Post, Taxonomy, Date picker…? You can define these field easily with nested array but how to do it with Meta Box Builder?

Imagine you want to create a Post field like so:

Prior to version 1.2, to create a nested array in Meta Box Builder, you can use JSON, encode the whole array of tax_query and paste to it value. Like so:

JSON value

From 1.2, you can use dot notation to define an array. For that tax_query above. We can define with dot notation like so:

Dot notation

Please note that I use tax_query.0.taxonomy, tax_query.0.field, and tax_query.0.terms because the taxonomy named category, the field named slug and the term named technology are belong to the first (and only one) array of tax_query, not directly belongs to tax_query.