tstats values() function removes duplicates from a multivalued field

My dashboard queries are based on datamodel. Hence we are using `tstats`. We have a use case where we need to `mvzip` 2 multivalued fields. We are using `values`() in `tstats` but `values()` remove duplicate entries from multivalued field. In stats we have `list()` which doesnot remove the duplicate entries and also preserve the order of occurrence of values. We want a `list()` equivalent functionality in tstats query which doesnot remove duplicate values and also preserve the order. Also we cannot keep this field in `by` clause.