Expl Top Labels

Key Expl Top Labels of function Parse in Setrefers to an optional 1D-array consisting of N text labels, which must be part of the top row labels, which may have been renamed by the Top Labels entry.
They define the columns in the final filtered set that correspond to the N explicit types supplied in Expl Types
Note, an index-based column specification may be alternatively defined through the optional entry Expl Cols
If omitted, the supplied N explicit types apply on the first N columns of the final filtered set in sequence.
For example, assume the entry Expl Types defines the two explicit types Integer and Date
Then assume the entry here contains the two text labels "Settle" and "Maturity".
This would mean that the first explicit type Integer applies on the column titled "Settle" and the second explicit type Date applies on the column titled "Maturity".