doesn't display meta_key fields starting with _underscore

there are some meta_value fields that i’d like to index if a certain meta_key value is found

but the meta_key starts with an underscore:

_custom-item_item-data

how can i include meta_value fields in searches if a meta_key starts with an underscore?

i think i’m noticing that meta_key fields that start with an underscore are not included in the WP Ultimate Search settings tabs

If >

Table: wp_postmeta
Field: meta_key
Value: _custom-item_item-data

Then >
search meta_value

thanks 🙂

https://wordpress.org/plugins/wp-ultimate-search/