Creating secondary index with ixDescending

Using a query component I have no problem creating Paradox tables with
secondary indexes.:

Query.sql.add("create index MYINDEXNAME on '+'" mytable.db'"
+'(FIELDNAME)');
Query1.ExecSQL;

Now that version 2.52 of the BDE16 now supports descending secondary
indexes,how do I create a secondary index with ixDescending.?

Thanks for any help
JerryG