woocommerce use oldstyle editor.
create a setting switch with user role is my mean.
Because in many cases it may be a multi-user mall, this is indeed a more complicated setup, but it is also very practical
unsuccessful。
1.system default，if custom fields more than the 32 fields can use in post.
but unuse in product. Settings Location product will jump to post.
So I don’t think the max_input_vars matters
2.i upload ini_set ('max_input_vars', 10000 ); to wp-config.php but unsuccessful.
