DTN IQFeed API question

Let's say you already have code which, in one shot,
retrieves all intraday data available for the
current day (for a single security).

How would you quantify or characterize the
coding change needed to instead retrieve that data
for a time-span of 5 days or 80 days (again,
in one shot)?

Please, no idle speculation, only responses based
on actual experience with (or at least informed knowledge of) the API.

TIA.
 
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