My data selector limits to only Saturdays, aka "Week Ending Date".

My data selector limits to only Saturdays, aka "Week Ending Date". How can I limit to the previous 4 'week ending dates' and future week ending dates? For example, if today is 5/15/17, I would expect possible data selections to be 4/22/17, 4/29/17, 5/6/17, 5/13/17, and all future week ending dates (5/20/17, 5/27/17, etc). In this example, user would not be able to select 4/15/17, 4/8/17, and prior.

In the settings for your date field, under the limits section, uncheck all day boxes except for Saturday:

Then, set the start date to "today-30" without the quotes or however many days in the past you would like to start the calendar.

The first field in the following form shows how it would work:

https://form.jotformpro.com/71274579152966