Function order_with_hidden 

pub fn order_with_hidden(
    visible: &[String],
    all: &[String],
    reference: &[String],
) -> Vec<String>

The sidebar’s full order: visible as the table applies it, with each column of all it leaves out (a hidden one) put back right after the column it followed in reference, the order last applied, or in all when reference does not name it. A hidden column with nothing before it goes first.