Access and modify the values of Other Parameters as configured within the DB Connection.

ParamName is the value you see in the name column of the Other Parameters setup window, as Param.

Declaration: property OtherParams : TStringList

As illustrated below.

procedure OnMapEvent(var Value:Variant);
begin
Value := Source.DBCons[0].DBCon.OtherParams.Values['ParamName'];
end;