Select Date for the type and Day for the date unit. In the step value textbox
enter the step increment you want: 2 for every other day, 3 for every third
day, etc. IN the stop value textbox enter a date beyond which the series
should not extend (such as 1/1/2010). You can use the numeric value of the
date instead, if you prefer. For example, today has the numeric value 39313.
To stop the series one year from today, you could enter 39679 (39313+366).
Sorry for the late response. Hope this helps,
Hutch