When using Griddle.js, is it possible to sort a column using values from a metadata column?

Question

Is it possible to sort one column via values of another hidden (metadata) column?

Why is this desired?

1. When Sorting dollar values, it is desirable and more consistent if we sort by numerical values instead of string/formatted dollar values.
2. When Sorting non-zero padded values with prefix/suffixes, sorting would only work through an index of sorts.